Continuity mistake: In the scene where Summer is about to leave for Italy with Zach and then realizes she has forgotten Princess Sparkle, she receives a phone call from Seth. In various shots the phone is on top of her hair and under her hair.
Continuity mistake: When Summer screens the call from Seth at the airport, her phone opens without her flipping it.
Visible crew/equipment: At the beginning of the episode, where there is a shot of the poolhouse, look at the top right hand corner. You can see where the set ends.
Continuity mistake: When Sandy meets Rebbecca in the coffee shop to discuss her running away, Rebecca's coffee cup alternates from being down on the table to by her mouth, when you see her from behind, between shots.
Answer: He means that if Alex has to go so far as to forbid Ryan from seeing Marissa in order to maintain her relationship with her, their relationship obviously isn't working.