Factual error: Marissa tells Ryan that she "has never slept with anyone before" (in the literal sense), which is not true as she and Ryan slept together (in the literal sense) at the motel in Tijuana, and then woke up with their arms around each other.
The O.C. (2003)
1 factual error in The Perfect Couple - chronological order
Starring: Peter Gallagher, Adam Brody, Mischa Barton, Kelly Rowan, Ben McKenzie
Continuity mistake: Ryan and Theresa are walking along the beach with ice creams. The amount of ice cream changes between shots. This is especially noticeable with Theresa's ice cream.
Caleb Nichol: I've come to ask a favor.
Sandy: I'm sorry, what did you say?
Caleb Nichol: You didn't hear me?
Sandy: No, I heard you, I... I just want to make you say it again.
Trivia: Adam Brody originally auditioned for the part of Ryan Atwood.
Question: When Ryan goes to Marissa and Alex's apartment (after Alex told him to stay away from Marissa), he says, "If you have to work this hard, it isn't working." What does he mean?
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.