Unless you want to be miserable for the next 10+ years Reggio, I think you should look at WHAT HAPPENED??? to your marriage. It can't really be all her fault, right? You must have some responsibility in this mess. I would try everything to try and get back your relationship...have you tried couples counseling and if not and she refuses, then go alone. Both of your behavior is affecting those children, whether you realize it or not.
And don't you want to be happy?? Please, please try to do something. Big hug for you!