Enough of that. I'm here for you buddy. Either in Idaho or Manhattan.
Here's my take: She is having a midlife crisis. It doesnt excuse her, but you have to realize this isn't the woman you fell in love with. The person is gone and may not come back. And the question you have to answer for yourself is even if she did come back can your forgive her and move on.
If I have learned one thing in the past year (almost) is that there is only one person I can control and make happy. That person is me. It took a lot of banging my head against a wall to figure it out, but I did. However, I learned that I can be happy. That happiness is a choice. It really is. It's hard and maybe sometimes impossible to believe it is a choice. But I will tell you it is. Trust me. Now, you need to choose to be happy. I'm not longer going to tell you to be positive. From now on it's BE HAPPY. Find a way. Find many ways. Do things for you.
John, the other thing you have to do is let her go. Let her go. Make that decision. Do it without anger. Feel free to pity her. Feel sorry for her. But don't hate her. Hate and anger will eat you up inside. It will make you something you don't want to be. It will suck away that happiness I told you to find.
Now, get off your ass and be the great father I know you are and get a life. You own life with happiness.