The logistics of it make sense but right now I'm questioning my motives. I know I should want to do it because it's the "right" thing to do but I wonder if I am just contemplating it out of hope it destroys the affair.
So wanting to destroy the affair is a bad thing????
You matter.
Your kids matter.
There is a fox in your henhouse and you are worried about shooting the fox because it may upset your chickens. It'll be over if you wait to long and OM's wife will find out eventually anyway (because your wife and he will ride off into the affairage sunset).
Tell her the truth so she can make decisions about her life based upon the truth. If it benefits you, so be it. If it doesn't, that's the cost of being a stand up guy. At least you weren't paralyzed by fear.
"Do not be afraid" appears in one form or another 366 times in the Bible. One for every day of the year (if it's leap year). Take the leap.
The internet is 90% complaining and entitlement and I hate it because I deserve better!