Friends Season 10 Episode 16 : The One With All the Other Ones (Part 2)
At her going away party, Rachel gives each of her friends except Ross an individual goodbye, leaving Ross hurt that she doesn't say goodbye to him. After going to Ross's apartment, Rachel argues with him, but they end up sleeping together. Monica and Chandler start packing up their apartment and Chandler finds a pair of handcuffs and tries to find out who they belong to. Erica goes into labor.