I would guess that it would be easier for a man to say he divorced because his wife had an affair than it would be for a woman to tell someone that her husband had an affair. I know I held onto that secret for a long while before I even told my best friend, LONG before we finally seperated and divorced.
I think my XH would have been gone in a flash and telling the world all about it.
Being here though, I guess there is a wide range of reactions, not always determined by whether man or woman.
I'm not an expert, but I've been there. And I survived.