I don't have any advice or words of warning. I was in the same boat as you. I chose the path you are chosing. I married my A... all the things that I said would never happened... are happening.
We all have to learn our life lessons the way our HP intended for us. You are living the life intended for you. You are learning and growing the best way you know how.
So the only thing I will say is a prayer for you - my prayer is that you never let it go as far as I did. I pray you find your bottom before you bring children into the equation. And if children are someday involved, I pray you find Al-anon before your own sickness impacts them. I pray that you find your bottom before the verbal abuse turns physical. I pray that you find clarity and truth and educate yourself on what alcoholism really is.
And just to be clear... My prayers are for you... not your STBAH.
I send all these prayers out to you... and then like the others, I will let you go and Let God do what he does best!
Best wishes to you.