[This message edited by GradSchoolGirl at 9:50 PM, January 30th (Thursday)]
Unfortunately, I have to agree with jjsr, your husband has basically cheated almost your entire marriage, has probably put you and your children through emotional hell....now you and your family are beginning a new, stable life, and he has an epiphany? I'd continue on the forward path with your life away from the heartache and drama.
BTW, you really need to get tested for STDs if you haven't already.
You don't have to feel pressured to make a decision either. Tell him you hear what he is saying, are glad he is having such self-discovery, but right now you are too traumatized to entertain a change in your relationship.
You have a PM.