Quote from Phoebe in The One With Ross's Wedding (Part 1)
Phoebe: Look, Rachel, if you go you're just gonna mess with his head and ruin his wedding. You know, it's too late. You missed your chance. I'm sorry. This must be hard. But it's over. Rachel: [sighs] You know what, no. It's not over until someone says, "l do." Phoebe: I do! I do! I do! I do! [groans] Yeah, like I can really chase you. I'm carrying a litter.