The OC Season 1 Episode 20 (02/25/04)
-Theresa takes a waitress job in Newport and says she wants to spend more time with Ryan.
-Luke and Julie continue their secret affair.
-Caleb asks Sandy to help him with his friend, Uncle Shaun's legal trouble. Uncle Shaun vaguely threatens Caleb tries to bully Sandy and when he asks too many questions.
-Turns out Theresa has a fiance, Eddie that she's avoiding. Ryan invites her to dinner at the Cohens. Marissa shows up to fight for Ryan and things get awkward. Seth likens the love triangle to a telenovela.
-Summer won't acknowledge her relationship with Seth at school which hurts Seth. Summer confides in Anna that she's afraid Seth will get bored with her and dump her. Later, she kisses Seth in front of the school.
-Theresa decides to go back to Chino with Eddie. Ryan agrees it's the right thing to do but when Theresa asks if there's a reason for her to stay, he kisses her.