What are you doing to help yourself? I mean if he relapses again, can't find a job, or both?
I know it's worst case scenario, and I know you don't emotionally want to consider that as a possibility, but emotions aside...! You have to put them aside and think about financially if you can take care of yourself, by yourself, if needed.
I really hope as we all do that he stays sober. But hope doesn't take care of financial emergencies and heartbreak after the fact.
So please do what you have to do to look out for yourself! Be prepared, think of the boy/girl scout motto. Prepare for the worst, hope for the best.
I would distance myself somewhat too! He's emotionally upset over what he has done, and if he doesn't find a job right away, he could be in a really foul mood until he is successful, that, just on that one element of his life.