Congratulations on six months! That's a great accomplishment. I'm new to SR and also early in my latest attempt at sobriety. So I'm not sure I can give any advice at this point. But from everything I've heard and read, the odds of successfully staying in recovery and living with a drinker are huge and almost impossible. You did the right thing by dropping him.
My wife is also a heavy drinker. I'm committed to recovery and this time I will be successful. I know at some point I will have to make a decsision to either seperate from her or force the issue of her quitting. I'm not there yet, but I know that if I expect stay sober it's either with her sober, or without her. I've got enough on my plate right now and I need to focus on myself, (just like you're doing) but I dread the decision that will be coming at some point to too far away. Thanks for your story and stay strong!