dgtal....please let this be. The other wife already knows. You aren't going to be doing her any favors.
If you really really need to get this out somehow, you should write him a letter. Put a picture of you and your wife kissing each other. And on the back write, "We were stronger than you. Game over."
And really, really let this go. If you don't....you will end your marriage or damage it so badly, you're going to open it back up for your wife to meet someone else.
