Hi T, I think what Sg means is that you should treat him as if he is not in a crisis. Treat him as you would a "friend". If he says weird things or tries to bait you just let it roll off your shoulders...bite your tongue until you can vent here.
I have followed that advice on many occasions and I think my tongue bled a few times! However, I did not talk about every little thing to H, I picked my battles, usually when it came to the kids well being.
When you find a new L, get a contract in writing about your financial obligations. I am not sure how things work in your state, but here many L's accept reasonable payment plans. May be something to look into.