Season 10: Episode 232: The One with Rachel's Going Away Party

Rachel finishes preparations to go to Paris. Monica and Chandler pack up their apartment with the gang's help. While packing, Chandler finds a pair of fur-lined handcuffs and has trouble tracking down their owner. During a going away party for Rachel, she says individual goodbyes to everyone except Ross; he's upset and confronts her, leading to a passionate kiss. Erica goes into labor.