It's good you will get some supportive counseling for you! Whatever challenges you face with your abf, you can bring them to SR and a good counselor and to a 12 step group for codependents. You have a lot ahead of you, and as we all know, the more we surround ourselves with people trying to live healthy lives, the better we feel, too.
I hope your abf does well in rehab. You can concentrate on you right now!