She advises him to fight for Summer, otherwise she'll never fall for him.
They later break up (The Blaze of Glory), which leaves Alex feeling devastated, prompting her to decide that she wants to go back home and return to high school.
Alex appears in 13 episodes throughout the second season.
He asks Alex and she says that the show is sold out and that he'd have to work there to get tickets, and ends up hiring him.
Seth convinces her to go on a date with Ryan ("The New Era"), with himself and Lindsay joining to make it a double date.
In the episode The Rainy Day Women, Marissa moves in with Alex.