They were an intruiging entity to one another in the first season, and then got to know each other in the second when Alyssa enrolled in SJBS to help protect the school (and Justtin). There is a certain jealousy present involving Justin's relationship with Anna. Alyssa is there to support him following the death of his parents in Season Three. During the timejump Alyssa choses to sacrifice her loyalty to her family by going with Justin to college. They begin a romantic relationship despite objections from Justin's younger brother who blames Alyssa. Their relationship grows stronger In the fourth season, but Alyssa's past lover Matt showing up complicates things and they break up for a while. They reunite at Payton and Jason's wedding in Season Four and move in together in Season Five. Their relationship is put to the test again in Season Six where they face their biggest challenge yet when Alyssa becomes the new ruler of the Millers, right after suffering a miscarriage. They agree to try having a family again after one peaceful year with The Millers which is when they conceive their son, Damien.
Justin and Alyssa first meet face to face during Justin's sophomore year at the end of Season One. She shows up at the Dawson house on prom night and agrees to be Justin's date because she wants to go, although it is more out of boredom. The small town event in a gym with way to many teenagers puts Alyssa's mood off instantly, and after granting Justin not more then one short dance she takes off. They find a body attacked by a mountain lion that night, although it is never confirmed it was Alyssa.
Alyssa get accused of it by James, and she is seen storming out of the Dawson house. She then stumbles upon Katie who was attacked. Alyssa discovers Jared was the one who attacked the mountainlion. As she goes to inform the Dawsons about it, she finds out Claire has been kidnapped.
After Alyssa finds out Jared has kidnapped Claire she feels guilty. She helps saving Claire but then prepares to leave. When Justin tries to stop her she makes him forget about the past 24 hours, including their promdate. Because of this, Justin forgets his best friend is in a coma and he goes on a holliday with his family.
In Season Two Alyssa returns to the town a few weeks later to find out more about the Miller attack on The Silverstones. When she finds Claire battling with Liam, she takes Justin away from the fight and locks him in his room. There she keeps him and when he's about to run out of the door she vamps out to prevent him from leaving. Justin is very much shocked and confused by what he just saw.She then tells her there is more to the world than just videogames, and that he should stay there for his own safety. When later on Claire enters the room, Alyssa takes off slowly. While Claire talks about Magic and vampires and witches, Justin finally realises his best friend is a witch. Alyssa stands on the other side of the door, as she hears Justin ask who Alyssa was. Claire says she is not surprised he doesn't remember, and Claire tells Justin that Alyssa and him went to prom together. Alyssa then leaves the hallway to go and look for Liam.
After discovering who Liam is, Alyssa goes to talk to Claire about the two of them travelling to Portland to go and meet Payton. Justin is also in the room, and he is about to ask her something when she just ignores him and leaves. From there on, Alyssa is pretty occupied with Payton untill Payton invites everyone for a second Christmas Dinner. Justin and Alyssa encounter again. Justin is still acting a bit strange around her because of the reminescent Miller Amnesia. When Seth talks to Alyssa about it, she replies by saying she does not have the time to take 2 humans' emotional problems under her care. She says he's just there to mess things up, as he can't even make a proper tie, suggesting she did in fact notice it.
Justin proves the contrary when he later on in the evening asks an interesting question about vampires and sires, but that goes down the wrong way with Alyssa and she clearly shows Justin she is not happy with his question. Seth defends Justin, causing a shift in the relationship between Alyssa and Seth, with Alyssa claiming Seth is just pretending to like Justin for the sake of Claire. Throughout the night Justin glances over at Alyssa but he does not say anything else about it. He leaves that morning and goes back to Waterfall Creek.
A few days later on New Years Eve they are celebrating in the school when Justin finds Alyssa walking off to the rooftop. Alyssa states Seth acted like a jerk, to which Justin says that he was just as much to blame for it as Seth. Alyssa says she's not going to disagree on that. She then catches his heartbeat, indicating Justin is very nervous and excited. Knowing what's going on in the young teen's mind, she gets up and leaves Justin on the rooftop just like that. Alyssa then leaves town again, and assists Jason in transition. When he plans on attending the wedding of Alyson and Dylan, Alyssa finds herself reliefed that she won't have to watch over Jason there, seeing as she isn't even invited. Justin is, and he asks Claire about Alyssa several times. Eventually he calls her with Seth's phone, but Alyssa is in the ocean at the time, not replying her cellphone.
Alyssa and Seth then bond over Jason's transition and Seth asks her if she ever plans on letting anyone love her, aside from him and Jason. She answers after a long pause with a 'maybe'. She then opens up about her mother and the trouble there, to which Seth offers a distraction in the form of prom. He adds in that Justin will also be there, and although Alyssa is reluctant at first, she agrees to go anyways. To Justin's surprise, she takes his arm as they walk in, showing signs of acceptance towards him. She states his attire matches her dress best out of all the boys.
A few days later, news about the assasination of multiple vampire leader sets in the vampire world, and Alyssa comes forward as the killer to James and Elisabeth's shock. They come around eventually, and offer her support. Justin can't quiet comprehend the large scale of Alyssa's actions, and expresses his support to her too, even tho he is only human.
At the 4th of July party, Alyssa is visably uneasy, and when Justin talks to her she comes up with a fake story that even Justin can spot. She then leaves the party to go and meet up with Matt O'Connell, her former fling. They reconnect and Matt tricks her into taking a potion that strips her humanity. Alyssa becomes a careless bitch, to Justin's description. When she says she doesn't care anything about Justin, he is hurt. Alyssa gets captured after she tried to kill Payton and Claire. Justin visits her at the Dawson house while she's locked up and when he threatens to hurt himself badly because he can't stand being hated by her, her humanity returns and she can be cured from Matt's potion. Alyssa leaves town shortly after because she needs to reflect on her self for a while.
When Alyssa enrolls in Sint-Joseph's Boarding School she becomes one of Justin's classmates in his senior year. When Justins asks her why she decided to enroll, she says she wants to be around her friends and this was the most sublte way to do it. Justin notices she has changed because she is way more open towards him then the last time they saw eachother. They walk into the school together while Justin keeps an eye on her behaviour. They become friends after a whileover their shared friendship with Claire and Seth, and Alyssa discovers Justin is actually funny and very loyal. Justin and Alyssa both attend the fall dance in October, but to Justin's surprise Alyssa is attending with Douglas. At the end of the festival, they do interact at the punch table, with Alyssa offering Justin a alcoholic version of the punch.
Their friendship evolves soon and quickly. They are paired up on several schooltrips by their best friends, and they are forced to face the undeniable pull they have towards eachother. One of their conversations is about how Alyssa will have to drop out of school again because her mother is requesting her back at the compound. Alyssa asks him to take care of their friends for her. Seth walks in, but backs away again. Alyssa promises she will be back soon, but Justin says he's not going to let himself have hope. Alyssa understands, and thanks him for not asking her to stay. Justin asks her one thing, and that is to come back as the girl he loves.
Alyssa leaves the appartment, whispering something Justin can't hear. When she heads out to meet her transportation, she stops a few feet away and as she makes eye contact with the driver, she looks up at the appartments to see only Seth there. She then looks back to face the driver, and walks in the other direction.
She returns a few hours later, after having hunted, and follows Justin's heartbeat to the roof.
She joins him as he is staring off to the skyline and she says she couldn't leave because of him. After she admits she has feelings for him she kisses him. They don't say much about it, but as Alyssa drops her act Justin can notice she likes him as much as he likes her. The days following that they make no secret of their fondness for one another and they parade through school together because 'that's what 21st century teenagers do' and Alyssa digs that. She gets named 'babe of the month' by the boys locker room and they both rise to be SJBS royalty when Justin excels with track.
In the early spring Justin and Alyssa's relationship reaches the final checkmark on their 'to do list' and following that specific night they are inseperateble. When Alyssa gets attacked Justin offers to help Seth figuring out who did it, but ultimately Alyssa asks Justin to stay out of it for his own safety. Later that spring they invite his parents over so Alyssa can meet them. Their parents end up disapproving because Alyssa has a shady record and her past doesn't match up. Justin tells them to leave. That evening, Jared causes their car to crash after he listened to the stuff Justin's parents said about Alyssa. Alyssa threatens she'll kill him if Jared shows up once more. The following morning they hear about the accident. Jared already left town, and Alyssa knows he's the one who did it.
While Justin tries to keep strong for his brother, Alyssa knows he's breaking. He talks to her in the beginning, but by the time of the funeral he is completely closed off from the matter, and only talks to her about daily things. Alyssa tries to ensure Justin graduates, but his grades hit rock bottom and Alyssa has to convince the teacher to give him a re-take chance for the exam so that Justin can pass and graduate.
Justin's once so bright educational future gets cancelled and when he has to sell his parents house all he wants to do is leave town. When Chris goes to live with his uncle Eric Saphire Justin agrees to go along. Justin mostly shuts Alyssa out and stays in his room for days. Not even Claire's visits are able to cheer him up. When Chris says he's done with school, Alyssa steps up and says Chris needs to continue to go to school. Justin overhears he and decides to go to the one college that actually accepted him with his bad grades.
During college, Justin slowly starts opening up again. Originally, he complaints to Alyssa about the little stuff at school. As the holidays dawn, he breaks down and tells her how much he misses his parents. Alyssa comforts him and supports him as he tries to pick up his life again afterwards. She arranges his gym membership as Justin works on getting back to shape and she helps in getting Chris and Justin to interact again, although the latter runs not as effeciently as she'd have wanted.
Eventually Justin becomes happy again and he graduates in Business Management and Accountancy. Alyssa arranges a trip back to Waterfall Creek the day after his graduation. When she tricks him into house-hunting, Justin is reluctant but when Claire shows up on the trip Justin gets used to the idea of moving back to his hometown. He and Alyssa decide to buy a house in Justin's old neighbourhood. After they are moved in to the house Chris shows up, saying he no longer wants to stay in Wisconsin. Now that Chris is over 18, Justin knows he can not control his brother anymore, yet Alyssa offers that Chris moves into the guesthouse.
When Justin and Alyssa host Thanksgiving in their new house they start to get influenced by their friends and family who have families on their own.
After the throning ceremony, Alyssa starts to act in a very bad way and many (among who Jason) believe she wasn't ready for the human blood yet. Eventually it is revealed that something else is behind her strange behaviour. Payton says Alyssa might be pregnant, which is confirmed when Justin feels a heartbeat when he touches Alyssa's stomach. When Alyssa hears it herself too, she is amazed and confused. She takes off to the woods, and checks herself in with Elisabeth. After she is given a night to recover from the past events, she and Justin request an ultrasound. There they get official confirmation that Alyssa is pregnant.
Over the course of the next few weeks, Alyssa and Jason are indulged in the Miller throne, talking to allies from far and wide to reconnect some important relations. Justin and Alyssa's relationship doesn't strain, as he takes up residence in the motel for this time along with their son. Once the bussiest time is over, Alyssa and Justin return to the beachhouse to stay there a few more weeks.
Alyssa and Justin are then praised by Jade and Pierre for being their inspiration, despite the fact that Alyssa and Justin were not together as long as they have been. The four of them embark on a sightseeing trip to the grand canyon, a lifetime dream of Pierre.
Come next winter, they are faced with a bigger challange. After Jade's reveal, the Anconi Threat is just around the corner. Alyssa and Justin start to realise what the past half year has been all about, and they start taking precautions. Justin and Alyssa make a trip to Wisconsin, to have Damien stay over at Justin's aunt and uncle's house, with Chris there too to stay connected. When they return.
Justin and Alyssa's sexual relationship has been a big part of their story. After a long period dating without sex, their relationship developed more after it. When Alyssa was confirmed to be fertile genetically, they agreed that the possibility shouldn't stand in the way of them loving each other. After Alyssa's miscarriage, being with Justin showed to be one of the keys to her recovery process. They eventually had 4 children afterwards.
Alyssa and Justin are the only main couple that actually attended high school and college together.
Alyssa and Justin agreed to teach their kids Spanish as part of their Mexican heritage.
who’s the cuddler: Justin
who makes the bed: No one
who wakes up first: Alyssa
who has the weird taste in music: Justin
who is more protective: Both Alyssa and Justin
who sings in the shower: Justin, and with his voice it sounds really bad
who cries during movies: No one
who spends the most while out shopping: Alyssa, just because she can. Justin is usualy the one keeping things on a normal level, because he is an accountant
who kisses more roughly: Alyssa
who is more domineering: Alyssa
who controls the remote: Justin, because he is determined to watch his sportsprograms
what pets do they have: None
who decorated the house: They both decorated the house to really make it a home. But Alyssa made most decisions.
who does the cooking: No one, they are both terrible cooks. Alyssa likes to try, but it doesn't always goes well.
who is more organized: Alyssa, because Justin is really messy.
who iniatiates bedroom fun: Both equaly as much
who suggested kids first: Neither, it sort of just kind of happened.
who is the big-spoon/little spoon: Alyssa is the little spoon.
what's their favorite non-sexual activity: Playing with Damien and working on the Millers
who comes home drunk at 3AM: That is usualy Justin.
who kills the spiders: Justin
who falls asleep first: Justin
head canon: Alyssa made Justin forget about her three times, after that they broke up one time and got back together.
do they have any rituals: They decorate the house together for Christmas. They do work for the Millers together and they usually bring Damien to bed together.
who is louder: Alyssa
who is more experimental: Alyssa
who takes more risks: Alyssa
do they fuck or make love: Both
lights on or off: On
who is more spontaneous: Alyssa
who does the laundry: No one
who gets up in the middle of the night for the baby: Justin
who is most likely to steal the others clothes: Alyssa steals Justin's.
what is the most trivial thing they fight over: Who's turn it is to check up on the Millers.
who steals the blankets: Justin
who remembers anniversaries: Alyssa
who gets the food and who stays at the table: Alyssa gets the food for Justin
who stays up untill 2AM reading: They don't read
who initiates pda: Alyssa
who gives nicknames: Justin
who apologizes first after an argument: Justin, because he can't stand Alyssa being mad at him. Alyssa is very stubborn
what kind of gifts do they get for eachother: Justin get's Alyssa sexy lingerie and Ayssa get's Justin socks, boxers and a car.
what's their favorite place to be together: The bed, the shower, the babyroom, their house and the rooftop.
their song: Give me love - Ed Sheeran
where did they first meet: At the Dawson house
who are the godparents of their children:
what do they do when they're away from eachother: Justin usually goes to do some sport, Alyssa hunts or works on the Millers
who says I Love You the most: Both equally
who is the dirty talker: Both
what would they do if the other one was hurt: Alyssa would freak out and find somebody to help him. Justin would give her some of his blood.
who spoils the kids the most: Justin
who proposes to bathe/shower together: Both
who's the messiest: Justin
who fixes the vehicle after a breakdown: Alyssa
Living space has a leak! Who fixes it: Alyssa
who buys the groceries: Alyssa
going out to eat, who pays: Alyssa
would they go to the beach: Yes, but not in the summer, because the sun irritates her eyes
can they swim: Yes, but Alyssa can drown
is someone multilingual: Yes, Justin speaks English and a little French and Alyssa speaks English, Spanish, German and French
baths or showers: Showers
who stays up late: Both, Alyssa because she is a vampire, Justin because he usually works till late
how often do they have sex: Very often
oddest place they have sex: The bathroom
favorite positions: against the wall
quickest turn ons: For Justin that's sexy lingerie, for Alyssa that's Justin's bare chest