Hi Clara, and welcome!
I think it's best to focus on your own recovery and let him focus on his own recovery. How are your children doing? Is your divorce final? is your ex supportive of your recovery? Maybe cleaning up your side of the street for the time being is best. Your children, no doubt, need a sober mom. I'm the adult child of an alcoholic and that's the best gift you could give them.
Everything happens as it's supposed to. Hugs and prayers!