Trivia: Mischa Barton also played the dead girl who threw up in The Sixth Sense.
Trivia: Adam Brody originally auditioned for the part of Ryan Atwood.
The Rescue - S1-E8
Trivia: Seth is surprised that Summer has read the book "Madame Bovary". She explains that it's the favorite book of patient Tom Shales, who is incontinent (lacking normal voluntary control of excretory functions). Tom Shales is a Washington Post critic who blasted "The O.C." in his review.
Trivia: This is at least the second TV show that has featured the actor Alan Dale dying of a heart attack and leaving behind an evil gold digging girlfriend/wife. Dale played Jim Robinson on Neighbours in 1993, who died under similar circumstances.
Trivia: Kelly Rowan, who plays Kirsten Cohen, is only 14 years older than Adam Brody, who plays her son Seth.
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.