Quote from Ross in The One Where Monica Sings
Ross: No, I'm serious. I mean, if she wants to date people, fine. I don't care. But at least she could have told me. You know, I've been putting my life on hold and just concentrating on Emma. But if she wants to go out there kissing guys she barely knows, then so will I. [Chandler stares at Ross] Very funny! Ross is gay! Ha, ha.