The first thing you need to do is reestablish the relationship with your children. If I were they, I would feel that my mother abandoned me. So that is job one. They are more important than your H.
All the stuff with OW matters not.
What's with the 2 year old baby?
What is going on with the coach?
Actually, the more I read your stuff, the less I know. And the more I read, the more I see that you are head is not screwed on properly.
I need more.
IMP
PS - use spacing between paragraphs, it makes it easier to read.