Piano, I have a strong fixer in me too but he needs to feel the consequences of his actions. If you delay that by rescuing him to any degree, he'll stay in the unhealthy mindset that he's in. His stuff is no longer your responsibility (it really never was). It's his.
Also, I would stay out of his friendships, even if they were yours too. You don't want him blaming you for any trouble with them. It sounds like he's causing trouble for anyone around him right now.
