Congratulations, of course you thought to call and share your news. In my opinion, very good that you did not.
When I left my abf, over 1 year ago, it was really hard. I went no contact, he called, he texted, I did not reply. I made a life for myself, found a great little place to live, saw friends, read a lot, watched old movies, healed.
He did finally get sober, he's doing well. I see him now.
I set a boundary, and I stuck to it, and I am going to continue to stick to it.
Stay strong, good things will continue to happen for you.