Quote from Barney in The End of the Aisle
Barney: I know it's a lot, but I-I don't want to screw up this wedding thing.
Lily: "I vow to love you forever unconditionally, unless you pudge out, in which case I'm a Barney-shaped hole in the wall."
Marshall: "I vow to start watching hockey with you..."
Lily: Oh, that one's sweet. I know how much you hate hockey.
Marshall: "...once a month""
Lily: But it's still a nice gesture.
Marshall: "No. Once a year. No. Hockey's dumb. Not watching it, and neither are you, woman. Now make me French toast." I'll put this in the maybe pile.