I am going to offer my thoughts on your situation, but they are what I would do if this happened to me. I would file for a divorce and request child support and be sure to stipulate in the decree about your finances, home and whatever your children may need in the way of health insurance all of the incidentals that they need for their activties. I would not wait around on him because he's made it known to you what is on his mind.
The divorce decree is only a piece of paper. There are a number of people who actually get back together in a few years, remarry and go on to live happy lives. Sometimes this happens and there is always hope for the future, but in the mlcer's case, they have to completely destroy everything in order to see the light. In some cases, they are never the same after the crisis and then there are others who turn out to be wonderful, solid individuals.
It's time to seek the advice of a lawyer and get something done. Just my two cents.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
