Dear Missie (short version of Mistress), You probably expect this to be another article that condemns you and tells you you’re a horrible person for banging another woman’s husband. You probably expect me to urge you to leave him. But I won’t say these things to you because I know you’ve heard them over and over again. How do I know? You see, Missie, I have been you before- once. Actually, I have been you five times. I have dated …