Monica Geller privileged, inexperienced childhood best friend Rachel (Jennifer Aniston), with whom she had long lost contact, suddenly arrives in her neighborhood unannounced as a runaway bride after abandoning her own wedding, Monica allows her to move in with her while she attempts to reorganize her life, and the two reconnect. Monica begins dating Dr. Richard Burke (Tom Selleck), an older man who is also one of her father's best friends and 21 years her senior. However, the couple mutually agrees to end their long-running relationship after realizing that Richard does not want children, while Monica aspires to eventually raise a family
The One with Monica and Chandler's Wedding officiate the wedding in case Joey doesn't arrive in time. Meanwhile, Ross and Phoebe find Chandler again, who admits that he was indeed running away until he found a small baby outfit in the hotel's gift store and realized that someone that small can't be scary. He then goes with Phoebe and Ross to the wedding. As the ceremony begins, Joey finally arrives and takes his place between Monica and Chandler, accidentally letting slip that Chandler had second thoughts about the wedding. Monica delivers her self-written vow, while Chandler delivers one from the heart - both speeches are very moving.