What do you expect from him? You made the rules.
He lied to me.
Oh, don't give me that. Of course he lied to you.
Hey, you don't have to hear this if you don't want, just tell me to shut up, we can talk about something else. I don't know why you're more surprised that he lied to you, than the fact he slept with someone else. Neither one surprises me. He slept with someone else, because he's a man.
INT. - MARK'S LIVING ROOM - EVENING
SHARON listens with growing disbelief & sick fascination as MARK continues. There may be glasses of wine (or something).
I don't give a shit what anybody says, I don't care who denies it, men who are supposed to be in a monogamous relationship want to fuck other women. They do. Some men give into this desire, some men don't. Those that don't, are better at controlling their natural tendency toward being a dog but basically, at the core, all men are dogs. All women are whores, but that's another discussion altogether, we can get into that later if you care to, but, being a dog, every man wants to fuck other women.