I'm sorry. I wish your wife had the courtesy to tell you to your face.
If the other man has a wife, I think that you should pay her the courtesy of telling her what you know about the affair. She has a right to know.
All the best, -NOPkins-
I will ferret out an affair at any opportunity.
-An affair is the embodiment of entitlement, fueled by resentment and lack of respect. -An infidel will remain unreachable so long as their sense of entitlement exceeds their ability to reason.