I can guarantee that many have been cheated on more than they think.
When I was young, I worried to death that someone would cheat on me. It eventually happened to me, then my ex wife did it. Our relationship wasn't very good anyways, she was a little witch to me. I was contacted by a friend who was friends with the guy. Apparently my wife had been feeding this guy a bunch of BS, about how bad of a person I was. When my friend told him a very different story he felt bad, and wanted to meet me. We talked and he told me everything, I wasn't even really mad at him. When I confronted my wife, she of course tried to deny it. When she could no longer wiggle out of her guilt, she fessed up and gave me the reasons why (don't even remember all of the BS reasons). My first reaction was going to be to throw her out....but then I got to thinking. I thought to myself; someday I'll be dead, and someday I will want God to forgive me for all the terrible things I have done as a sinner. What if I ask for forgiveness and he asks me why he should forgive me when I didn't forgive? So I forgave her, and have no regrets for doing so. She left about a year later on her own.
Got cheated on by a girlfriend years ago before I was married. Beautiful gal. A friend told me about it. I told her to move on. She turned out to be a serial cheater with everyone she has been with.
Got cheated on by another before that one, but we were young and in a very new relationship. Probably doesn't even count. She ended up staying with the guy for a long time.
I am positive I got cheated on at least one more time by one of my long time girlfriends. The guy told me. It aggravated me, but we were going through some things at the time and we weren't really 100 percent together, so I just returned the favor and moved on. We actually ended up staying together for years after that, and most of our relationship was wonderful to be honest.
I've been the side piece once, and she was a smoke show, and was about to jump ship on her BF which she later did. I was positive that he knew, but just didn't care. Come to find out that is just what she does, and probably still does. Gets bored after a while in whatever relationship she is in and wants to experience new love.
I cheated on a girl a couple of times to pay her back for something horrible she did. That is one time I just couldn't forgive, and good Lord help me, she deserved it and I didn't feel the least bit bad and still don't. I dumped her afterwards with a smile.
After these experiences I don't worry about that stuff so much anymore. You can't change a persons will; never gonna happen. Consuming yourself with that will just burn you up. Having said that, I would wager that things are a bit different if you are married and have children with someone and they cheat. There is a lot more a stake then. Maybe I can let things go easier because I get off Scott free no matter what because I have no children, and after going through so much crap in relationships I pretty much have ice water in my veins now. Oh, and after saying all this, the worst thing that ever happened to me in a relationship still somewhat haunts me to this day because I loved her so much. She was a little Southern Belle with big ole chestnut eyes. I was absolutely devastated, and it had nothing to do with cheating.
TMI?