I feel ya, Swim - except my AW is far from sober, and may never get there. But I've thought about the 'what-ifs' of her getting sober and how I might feel about that.
In the last 5 years she has caused so much drama, so much stress, so much pain, so much destruction and hate - I'm not sure it can EVER recover. My walls have bee built, my resentment has been solidified over and over again. I'm not sure it could ever be repaired. Five months can't erase YEARS of bad behaviour - and there's nothing saying that she won't relapse again.
Just sayin'. I know where you're coming from. It's hard. Take care of yourself.
COD