Should I confront or not?

[MrBond]

"But having affair with OW can not solve the problem but only will hurt me and our kids and also himself."

That's YOUR opinion. He thinks otherwise. First off you need to understand why he's doing what he's doing. Plus, even though you disagree with what he's doing, he does have a right to do what he wants. You can't control that.

What you can do is sympathize with him and continue to grow in your own way. What is something that the OW is providing him that you haven't been? Compliments? Encouragement? Coversations? Were you talking to him like another one of your children rather than your H? Change the behaviors that you have control over. Do that for you and not just for your H.