I am in your same situation with having a JW spouse and two small children. I was already DF'd but he always had hopes of me being back as I'd keep going with him and teaching the kids the "Truth". I confronted him with my decision to become a member of a new church and take our children. He had a meltdown of course but he's coming to terms with it. I'm on a lot of prayer lists from the TRUE FRIENDS I've made and it is helping.
I'd like to know how it goes for you. I live in North Florida if you live close we could get up for a chat sometime.