It's bad to say something that hurts your significant other.
Kate is getting dressed up sexy to surprise her husband Michael when he gets home, so they can have a romantic evening.
Michael wants to respond to Kate's outfit.
Michael sees that Kate put in effort to look nice, and while he doesn't really like the outfit, he tells her she looks stunning.
Michael tells Kate she looks cheap and laughs.
Kate feels sexy and her and Michael make love.
Kate feels foolish and is very upset and both her and Michael's nights are ruined.