{{{{{{{{LMo}}}}}}}}}}
Awww hun...you are answering your own questions...you gave him the ultimatum. You need to stick to it. You don't find him a place....he has to do this for himself. For you to keep doing
for him is not helping anyone.... especially you.
I am also getting the impression that he is putting a guilt trip on you..... your words of "It's the only time I ever said such a thing and it was a MISTAKE. It sent him to the worst episode of depression that he ever had." That is not your fault!

Heather
"The Pessimist complains about the wind, the Optimist expects it to change and the REALIST adjusts his sails." ~~~author unknown