Song, I understand what you mean. You've changed, he hasn't so there is an element of guilt there. But, you've made positive changes and hopefully he'll feel your energy and see your strength as a beacon for himself. If he doesn't then you'll need to make a tough choice (or he will), which absolutely SUCKS, I know. But no matter what you'll have your clear mind (sobriety!) to make sound judgments and I'm sure everything will work out for the best.
Congratulations on 8 months!