Monica: You wanted it to be a surprise.
Chandler: Oh, my God.
Monica: Chandler, in all my life I never thought I would be so lucky as to fall in love with my best, my best... [crying]
Monica: There's a reason why girls don't do this.
Chandler: Okay, okay I'll do it. I thought, wait I can do this, I thought that it mattered what I said or where I said it. Then I realized the only thing that matters is that you, that you make me happier than I ever thought I could be and if you let me I will spend the rest of my life trying to make you feel the same way. Monica, will you marry me?
Monica: Yes.

[Sorry but this was the best one i could find.]

TV is bad. It gives people false hopes and expectations of stuff. I know i'm probably never going to have something so sweet happening to me ):