I think I am going to talk to his wife. We are somewhat friends anyway so it should not be so awkward as a telling a stranger. I think deep down she knows something is going on anyway because my wife and her were friends and now don't even talk.
In my case, the OMs wife thought about that for a while before telling me. She sat on it for a week or two and finally did. I'm glad she did, too. If you do, bring proof. You will need it.
There are moments in this life when you are so confident in the rightness of your actions, that not even for a second do you consider the option that you might be wrong.
