It's been interesting reading how guys would react, and I certainly know I wouldn't be a happy camper.
The thing is, I was that other guy. My wife of 25 years was married when we met. She had been married just over a year, and was not very happy in her marriage, but she really didn't know it. I think Catholic guilt forced her hand into marrying this guy because she had sex with him, and that's just how it worked. Back then? I mean I don't think that is the prevailing thought process these days.
Regardless, I was the bad man. Her husband told her parents that I was the Porn and Weed King of Central Missouri, and they believed him. It was a rough few years. Anyway, I think I had a point somewhere.
I didn't want to sleep with her, and we were just good friends until she gave me the signal that she didn't want to be married to this guy any longer, and from what she told me, I believed her. It was a good thing I did, too. She's the most caring, kind, generous, but still a little freaky chick I've ever met, and I'm lucky she's with me.