I've not been around for a while, but pop in once in a while to catch up to see how everyone is doing. It sounds like you have really gained in so much strength!! Well done you!!
Hold your ground at this point. You did the right thing in adjourning the D until there was a solid agreement for child care in place. This was absolutely the right thing to do. Who cares that he is placing all the blame on your for 'ruining' his success in life. Hopefully, at some point, he will realise he did it all himself. He's just blind with anger and frustration at the moment.
You seem to be getting back on track - already well on your way in fact. I don't know what he was like during the marriage, but was he a bit controlling?
I just hope that for you, once the D gets settled, you can all move on and create some space for yourself to heal properly.