John, I'm so bummed that you're back here. A few weeks back you were so optimistic.
I have to chime in on the infidelity issue. I've actually gone back and forth on it, and realize that it's no solution at all. It messes you up, it messes the life of the OW up, and if she's married, it messes with a whole other group of people. And of course, it messes up your W's life, and that of your kids. If things are so bad, then try to cut down on the number of lives you are messing with, get a divorce, and be done with it.
Or keep on working on trying to meet somewhere in the middle. No one said it would be easy. I really hope you are able to work things out.