Chandler and Rachel can't stop eating someone else's cheesecakes, which are mistakenly delivered to Chandler's apartment. Monica is upset that she wasn't invited to her cousin's wedding, but the rest of her family was. Phoebe chews out Joey for cancelling their plans together so he can go on a date; then she does the same to him when her old flame David (Scientist Guy) shows up in town for a day.
David: You look phenomenal.
Phoebe: Well... yeah. You look great, too. Did you get a haircut?
David: Yeah. Well, yeah, I... I got like 30 of them.
Monica: You invite my brother, you invite my whole family, and not me? Why? Why wouldn't you want me at your
wedding? What could I have possibly done? Stuart!
Frannie: I believe you know my husband.
Ross: So it's really a question of who could you have possibly done.
Joey: Is there anything I can do? Whatever you need.
Phoebe: Well, but now if you could acheive positronic distillation of subatomic particles, you know, before he does, then he could come back.
Joey: I could give it a shot.