I completely agree with previous posters...You need not change a thing.
Re-read you post...your answers lie there. You have felt better, and more hopeful since you have taken steps to take care of yourself and your children. Don't let go of that because he said what you wanted to hear.
His actions will tell you all you need to know. Sober and in a program of recovery. Those were your terms. Not the promise that he would do it. Give him the gift of doing it on is own...for no other reason than he wants to change his life for the better.
Step away, and take care of you
