I'm hoping this comes across as gently as I mean for it to, but...it sounds like you are getting drug back into the drama. I know it's hard not to know everything going on while he is hospitalized, but, he is an adult and what he has to do regarding his addiction, or even what's going on with him now, should be on him, not you. He is obviously over the danger point if they are talking about releasing him in the next several days. It might be less frustrating for you if you take a step back and let him deal with these issues.
I hope you aren't offended, but I felt the need to gently suggest that maybe you're allowing yourself to get too enmeshed in his self-imposed issues. These are all consequences of his own bad choices.