Sounds sooo familiar. My only advice would be the back way off your H right now. My H bolted on Monday with no notice. We ML that morning... but it was just Sex for him.
I think we would never have a problem in that area. We are quite attracted to each other that way. But it's not enough to sustain our M.
He has already seen a lawyer and everything. Anyway, your situation sounds very familiar and you are hyper focusing on your H... which I totally get. That makes them move further away. I am not saying however that if I had moved even further away that my marriage would have been saved. It's not savable at this point and a lot of that has to do with his verbal abuse of the children.... he takes out all of his frustrations on them, never on me.
M:47 M:18 D16, S19 1st S 1/08-5/08 Reconciled/May 7, 2008 Left again Nov 9, 2009 I Filed: Nov 17, 2009 Final: April 14, 2010 EX walked away from kids too