We cannot know if\when he will crash and, frankly, his problems are no longer your problems.
He needs to 'own' his problems and address them. If he doesn't want to address them, then it's not your place to think otherwise.
Yes, he may get fired. Yes, he may end up with health issues. Not your concern.
One of my favorite sayings is: 'Make your choices, live with the consequences'. He's made his choice and forced you out of his life. Now he either needs to deal with the consequences or make a different choice (to reconcile).
Seems doubtfull that he will choose reconcilliation anytime soon. So you need to detach and move forward yourself. To quote my mom: "This is none of your bees wax"!
My thread, Carpe Diem #4 Orig Thread: Carpe Diem #1
