Chandler picks out an engagement ring for Monica, with Phoebe’s help. Unfortunately, someone else buys the ring before Chandler has a chance to. He has to convince the other buyer to trade rings with him. Meanwhile, Joey and Ross are feeling brushed-off because Chandler isn’t hanging out with them. Phoebe makes matters worse by suggesting that Chandler is angry with them. Rachel tries to get Paul to open up and express his feelings. She gets more than she expects and can’t turn it off… so she dumps him.