DG I'm so sorry, you are going through some really though times now.
Your WH is such a turd tight now. Once you manage to untangle the money issues you won't be as much affected by his shenanigans. The rest of it you can handle through a lawyer. You need to try to detach more, for your sake...otherwise you are going to drive yourself crazy.
As you pointed out everything in your H life is "coming down around him", and that may be a good thing. Everything he has tried so far to run away from himself and his issues is not working, he may be closer to the bottom then you know.
Again, you can't help him right now... help yourself by detaching and by arranging your circumstance the way that what he does affect you as little as possible.
Be strong... I'm really thinking of you and sending you lots of (((hugs)))
M53 H54 D17 M33Y T38Y Bomb OW 09/09 OUT 10/09 BACK 11/09 OUT 01/10 WANTS TO R 04/10 BACK with OW 05/10 Wants to Reconcile 05/11 I said NO