The OC Season 1 Episode 18 (02/11/04)
-Ryan is suspended after his fight and Marissa sides with Oliver.
-Luke helps Ryan investigate Oliver. Ryan tells Marissa he thinks Oliver was lying about having a girlfriend. Marissa is furious with Ryan's meddling and runs back to Oliver.
-Caleb has Kristen break up with Julie for him. Devastated, Julie quits her job as interior designer.
-Marissa does meet Natalie but she's Oliver's ex babysitter, not his girlfriend. When she confronts Oliver he freaks and grabs a gun.
-Ryan, Sandy, and hotel security stop Oliver from hurting himself or Marissa.
-Anna breaks up with Seth as she feels she is more his friend than his girlfriend.
-Seth apologizes to Ryan for not having his back with Oliver and promises to be a better friend.