Dear Prudence,My husband says he loves me and wants to stay with me, but it seems like I make him miserable. He is always angry or upset about something and won’t end things with his mistress, whom I really do not like (we’ve had an open relationship in the past but don’t now). She seems to make him happier than I do. I love it when he is happy and miss being the one who makes him happy. What can I do?