Hi tripleaaa,
From what you have said, it seems that you have genuinely strong feelings for him. However, being in recovery yourself, you must understand the difference between standing by someone and enabling someone?
I know you probably don't want to hear this but I would advise you to step back and let him concentrate on his recovery at the moment. When he has some more clean time under his belt, then who knows what will happen.
Sometimes the best way to help someone is to walk away.
I really hope things work out for the best.
Love & Serenity.