Quote from Ross in The One with Phoebe's Husband
Joey: This is unbelievable, Pheebs. How can you be married? Phoebe: Well, I'm not "married" married, you know? He was just a friend, and he's gay and he was from Canada, and he just needed a Green Card. Monica: I can't believe you married Duncan. I mean, how could you not tell me? We lived together. We told each other everything. Phoebe: I'm sorry, but I knew if I told you, you'd get really, like, judgmental and you would not approve. Monica: Of course I wouldn't approve. I mean, you were totally in love with this guy who, hello, was gay. I mean, what the hell were you thinking? Ross: See? And you thought she'd be judgmental.