S6E23: The One with the Proposal

Chandler plans to propose to Monica at dinner, but his plans go awry when Richard shows up at the same restaurant. Meanwhile, Phoebe and Joey join Rachel at a charity auction only to discover that Joey isn't aware what a silent auction is. And Ross and Elizabeth's relationship comes to a crossroad. Chandler continues to pretend to hate the idea of marriage, unaware that Richard wants Monica back. Meanwhile, Rachel and Phoebe discuss their 'back-up' plans, if they are not married by the time they're 40.