At the roommates annual summer lua 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( guest James Black). And Nikki believes she must seduce Cameron( guest Zac Efron) in order to keep him interested in her and away from his ex girlfriend Amber (guest Shelly Buckner)