My wife was involved in a kind of 3way where the other couple(man and woman) were having sex while my wife was involved sexually with the women but not the man. I was not there when this happened but all of us, previously, where together sexually but with no intercourse. She kept it from me but I found out about it recently and I was not very happy about it. She seems to think that it's not as bad as I do because she didn't do anything sexually with the guy.
Am I wrong or should I be mad and consider this being cheated on?
I also am having a hard time believing that she didn't do anything sexually with the guy.
A little input please