Interesting convo, seems correct, and is encouraging, however the problem in this situation is giving up a marriage in order to return to your XH. That is a different kettle of fish.
Let me ask it this way....if while you were married, your ex-girlfriend, that you still like, came around asking you to have a relationship would you do it? That's essentially the question of the day that ML started. Do you leave your current spouse for your ex-spouse?
ML, if you didn't have a child with your first husband this would be a no brainer. It complicates things because if I was that husband I would want to try to be a family again. Anyway, a bird in the hand is worth two in the bush. I still say be very cautious, get help, and be very convinced before you give up a good thing for something that may or may not materialize.
In the end, it's not the years in your life that count. It's the life in your years. Abraham Lincoln
It is hard to fail, but it is worse never to have tried to succeed. Theodore Roosevelt