You backslid big time so now get yourself up dust yourself up and start moving forward. No more pursuit. Everything you do from here on in is what's best for you and the kids.
Your problem right now is you are trying to use logic and reason with an emotional human being. She can give two $hits about retirement and college funds. Everything for her is about how she feels right now. She is not happy and she thinks you are the reason she is unhappy. With time and space she will realize that you were not the cause of her unhappiness.
Now having said that, she is probably not coming back to the same marriage. She is not attracted to you right now because you are acting weak and needy. What can you do to change that? You join a gym, eat healthy, learn to play guitar. You get the jist of it. Take the time and fall in love with yourself.
When you do you will no longer be interested in chasing women who are rejecting you.
