The O.C. - Season 1, Episode 20: Soundtracks

First scene, Summer and Marissa talking

Ryan walks with Theresa on the beach; (repeats) Marissa talks about Ryan with Theresa; (repeats) at the end, Ryan and Theresa kiss. 

Ryan comes home to find Eddie looking for Theresa and they talk. Marissa and Theresa talk about Eddie.

Ryan and Marissa have an awkward conversation about Theresa in the school cafeteria

Seth gets up on the kissing booth and asks Summer to make their relationship public.