If and when things change, and STAY changed . . . who knows? Treat him with civility and give much grace (as I know you will), while still maintaining your family's boundaries, and you will have done well.
Very proud of you, Autumn, and while I'm sorry that your marriage isn't working out, I am nevertheless very happy to see YOU happy, and you and your kids HEALTHY. What you are teaching them, in terms of "how to manage a crisis" in their lives, is GOLD.
I will continue to support you in any way that I can.