Release nailed it:
"Don't let him suck the life out of you. Don't be his safe haven any longer.
You need to protect yourself. Unfortunately he may never learn until he is at
Rock bottom. No fiancé, no job, no home and possibly no nursing license.'
I am sorry that he had a heart attack, but that may not change a thing. If you
don't change you, nothing will change. It sounds like you are planning to take him back home with you...yet again.