At the roommates annual summer luau party, relationships are started, rekindled, and ended. Ava learns a terrible secret about why Johnny broke up with her years ago. Susanna pretends to be involved with Jay to ward off advances from her ex boyfriend. And Nikki believes she must seduce Cameron in order to keep him interested in her and away from his ex girlfriend Amber.

Relationships are reconsidered. Ava has doubts about getting serious with Simon while she still has feelings for Johnny. Susannah reconsiders quitting her partnership with Ava. Jay has second thoughts about Erika moving in with him when she wants to redecorate his place. Bradin is confused by Callie's hot and cold actions.Nikki suffers when she remembers her parents death.