Despite Brian paying his tuition and expressing his love in a new way, Justin continued to see him around campus with Daphne, and the flirtation continued. Michael even sees him cheating on Brian and informs him, betraying Justin. After this revelation, Justin stops seeing Daphne altogether.
He also stops writing songs with Michael.
Later on, it is revealed that Daphne was actually Justin's long-lost sister who had been raised by her mother after her father left when she was very young. He had never met her before, and they have a falling out when he finds out about her. From that point on, they do not speak again.
As for Brian, he tries to move on from Justin but fails. One night after partying with some friends, he falls off of his bike and breaks his arm. When he gets home, he finds an angry message on his phone from Justin saying that he is moving to Los Angeles without him. This makes Brian realize that Justin has moved on and wants nothing to do with him anymore.
In the final scene of the movie, we find out that Daphne has died. It is implied that she killed herself because she could not deal with the guilt of having betrayed Justin.
Michael has now become a famous singer who lives in Los Angeles.
After a bomb is detonated at Babylon, which Brian will possess at the conclusion of the season, Brian confesses his love for Justin and mends his friendship with Michael. Brian makes a marriage proposal to Justin, who finally accepts. Before Justin goes, they spend one final night together. In the finale, it is revealed that Michael was responsible for detonating the bomb and framing Brian for it. After killing Michael, Brian assumes his body's identity and goes to prison where he learns that he has been sentenced to life in prison.
In October 2012, it was announced that Brian Johnson would be returning for Season 3 as himself. The announcement was made by actor James Marsters (Jody Brennan/Spike) during an interview with TV Guide Magazine. Spike also returns for the season and reports having survived his own death at the hands of his former friend, Mason.
Spike and Jody are now married and have a son named Charlie. They live in a small town called Valley View where Jody works as a school teacher. It is also revealed in the finale that Charlie bears some resemblance to Brian due to him using his mother's body when she was killed by Mason.
As for Justin, he too returns for the season and reports having escaped from prison. He lives with his wife Sharon in a small town called Paradise where they run a motel. Sharon has become a vampire and they have a teenage daughter named Vicki.
Justin, who is being adopted by the Jensens, becomes involved with his mother's old drug-dealing lover, Seth. By the end of the season, Justin had broken up with Jessica by telling her he had cheated on her, despite the fact that he was attempting to conceal his drug use. Later in the series, it is revealed that Justin was using marijuana during filming of the show to help him write lines.
He later admits to having an addiction problem and decides to enter a rehabilitation facility. His father, John, feels that this is a bad idea because drugs will only hold him back from moving forward with his life. However, Justin decides to go ahead with his treatment anyway. During this time, it is also revealed that Seth was responsible for Justin's adoption, as well as another child who shares a birthday with Justin. It is suggested that he used this information to blackmail John into giving him money.
After going through rehab, Justin decides to move forward with his life. He gets a job as a writer's assistant at a television studio where many popular shows are created from ideas by staff writers. He meets and begins dating one of the most powerful women in television, Robin Arnor, who has her own production company. They eventually marry in order to save her career. After marrying Robin, Justin learns that she has been hiding a secret marriage license from her first husband, who she married when they were both 19 years old.
Despite the fact that Mikey was not cheating on Titus and was simply being the innocent, naïve Mikey that he is, Titus thought that splitting up would be best for both of them. Unfortunately, Titus' breakup with Mikey was the most mature thing he'd done in a long time.
Titus deciding to split from Mikey was the best thing that could have happened to them. It gave them both time to think about what they wanted out of life and how they were going to get it. Also, since they weren't together anymore, there was no reason for Mikey to keep seeing her anymore. This allowed him to move on with his life and find Rebecca who she says is "the one."
Now, as for Mikey, he too had decided to go after Rebecca. Unlike Titus though, he didn't just want a girlfriend - he wanted to get married and have kids. He knew that if he waited for someone perfect, someone who didn't exist, then he might never find true happiness. So, he decided to get out there and find it.
In conclusion, yes, Mikey does cheat on Titus.
In the series conclusion, Justin retains his magical talents and takes over as the new Headmaster of Wiz Tech, succeeding Professor Crumbs. Despite the fact that Justin has had several love relationships during the course of the program, his most significant relationship is his ongoing one with Juliet van Heusen.
Justin continues to develop his own unique brand of technology at Wiz Tech, creating such products as the Wrist-Watch-Phone, which can be activated by a single touch from an incoming call, and the Eye-Tap, which allows its wearers to send messages by staring at them on their phones.
In addition to running the school day to day, he also serves as a mentor to Harry Potter when he first arrives at WizTech.
It is revealed in the final book that Justin has been using his power of resurrection to bring back friends and family who have died. As part of his resolution to never lose anyone else again, he uses his talent to resurrect Juliet after she is killed in a car crash.
After this event, he decides to use his power only to save lives of loved ones instead of bringing them back to life.
He also creates a special place at WizTech where students who have been unfairly dismissed can work for two months while their files are being sorted through. These people are given jobs assisting teachers or working on research projects at WizTech.