Suspect my wife of 18 years is cheating, and extremely hurt, don't know what to do?

I do not see how you would get over a betrayal like that. And I could also not keep that silent. There are consequences to contract breach/cheating/lying/treason....and yes they are horrible for all sides.

Life has tough lessons. Do make an arrangement with the kids..when you see them and how you will try to form/keep a family with them because there is no reason to also lose the good from your former life.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.