Thats an interesting development. I wouldn't focus on D dates so much as I would the R between the two of you D or not. Many people bring closure to the legal end of things and come out of it wanting to rebuild a new R after the fact. Whether you D or not, you still will have an R with him due to the kids. So, you make the best of it. Just because he's thinking of Florida in march doesn't mean he's reconsidering anything in terms of how he feels about spending the rest of his life with you. Of course, keeping in line with lovingly detaching from him, you don't read between any lines or expect anything, you just happily go along your way, maybe you'll go to Florida, maybe you won't its up to you, you call the shots.
In terms of praying, bear in mind that for whatever the reason, God allows 7000 Ds a month to go through in the good ol US of A. So given that, focus on the R between the two of you, regardless of whether you're legally married or not, I think thats what he'd want you to do..
