Carrie and Sebastian are making out, staying up North, at the diner. Sebastian offers to get Carrie home by curfew because he wants to stay in her dad's good graces. Carrie refuses Sebastian's coat on the way out, probably because he keeps trying to force it on her and it's too heavy. Cut to Carrie crying in her bedroom, while Mouse watches. Carrie is overwhelmed because she thinks she might be falling in love. She fears that Sebastian might break her heart, or cheat on her, or lose interest, or move, or get kicked out of school -- all valid concerns. Mouse tells Carrie to "try to keep it light and fun," which is, for Carrie, to deny her core being.
Back at school, Carrie is neurotic. She really needs to blow off steam in Manhattan. Mouse snoops into Wes's file and discovers that she ranks No. 2 behind him academically. He takes college math and plays three sports. But no time to think about Wes's superiority now; Walt and Donna are walking around the halls together. It must be Maggie's turn to miss an episode, like most of the recurring characters seem to be doing. I'm not sorry about it. Walt and Donna make out, and then plan a shopping date at the mall. Best boyfran evarrrrrr.
Carrie and Dorrit are also making Saturday plans. Carrie has to take Dorrit to the library to research her school project on "a day in history that means something to me." Tom is acting weird about "having fun at the gym" because he definitely got to at least third base with that aerobics instructor.
After the inconsequential library trip, Sebastian shows up at Carrie's door. He's trying to be spontaneous like Carrie wishes she was. Dorrit goes to her room to do homework, and Sebastian and Carrie make out on the couch to a movie. Carrie goes upstairs to tell Dorrit to turn it down, and it seems Dorrit has escaped/run away from home again. She did this in the first episode, too, and it was no big deal. Now it will be a bigger deal because Carrie was making out while it happened.
Carrie is freaking out and Sebastian, being 17 and not knowing much about how to help a Type A neurotic girlfriend, offers advice. He should just leave, really, but that isn't the right answer either. Sebastian is a pretty good detective, though, noticing that Dorrit collects a lot of Sex Pistols info, history, and memorabilia. Sebastian also notices the date on all the newspapers, October 12, 1978. It's a clue!
Dorrit chose the day Sid killed Nancy as her meaningful date in history, it turns out, and Sebastian thinks Dorrit will be at the Chelsea Hotel. Meanwhile, Tom is probably getting more sex from the aerobics instructor. He will never be able to have sex again once he is saddled with this guilt