I never understood the confronting the guy thinking. She's the one at fault here. Honestly, if it wasn't him, it would probably be some other dude.Get her best friend alone sometime soon and ask her if she knew that wife was cheating.
You will be able to tell by her reaction if she went all the way or it was just emotional (and hopefully wife has a good friend she would share this with)
If wife complains, tell her that due to her destroying the evidence you were forced to use more extreme measures to determine how far her infidelity went.
I would also confront the guy, I doubt he will just layoff and the first time you fight with your wife he will try to swoop back in. Make sure he u derstands the consequencesof doing this....if he is recently divorced there is a lot of other tail he can chase.
Don't get mad at the guy....get mad at your spouse.
