I think it’s great you are going to al-anon, its very important for you to work some kind of a program for you.
It’s nobel you want to continue to “take care of him” his credit cards, loans, rent and utitiles, etc. but is that realistic for you for the next 10 months?
You mentioned that he went into this program on Jan 1, well that’s been 3 weeks now and it would seem to me that at some point he is going to have an “aha” moment and questions about all of those things, maybe then he will reach out to you.
Not trying to sound harsh here but I also sense a lot of thoughs from you on “being owed” for all you did for him. Owed by being apart of his recovery, owed by being acknowledged by him for “saving him” and then of course the real dollar value for all the bills you have taken care for him.
This relationship doesn’t really seem to be defined, you’re his best friend – semi girl friend. What exactly does that mean to the both of you? Are you both on the same page as to exactely what this relationship is, or are you on one page thinking, beleiving and wanting something that may not be what he is thinking, beleiving and wanting.
You say you feel shut out, is that because you have not heard from him? Do you talk with his parents? Have you attempted to reach out to him, have you called or sent any kind of letter asking him about his rent, bills, etc. and what his intentions are in handling all of that for the next 10 months?