It's expected that you spend the holidays with family.
Henry's mother calls him up on the telephone and asks him if he's coming over to her place for Christmas.
Henry wants to answer his mother's question.
Henry tells his mother that he'll be there and that he can't wait to see everyone.
Henry tells his mother that he's not coming because he wants to find a woman to spend the night with.
Henry's mother is warmed at the thought of the whole family being together for Christmas.
Henry's mother is shocked and insulted that Henry would prioritize sex over his family.