As men we think logically. If we just went to MC for 3-6 months we can fix the marriage. We are both going to suffer financially if we get divorced. Who gets the kids on the holidays?
As women they think emotionally. I am not happy. It is Mr. U that is making mr unhappy. I will never be happy again with him again. That's how she feels now. That can and most likely will change down the road.
Did you ever hear the saying "if you love someone then set them free and if they come back it was meant to be"?
That is DB in a nutshell. The only thing missing is the part where you work on yourself and become a man only a fool would leave.
Lastly, it is extremely rare when a father is not awarded 50% custody when he seeks it.