Step back and let him do this, or not do this, for himself. The more he has vested into his own recovery the more successful he will be.
Take this time to work on you, figure out what needs and desires you have out of life, and take steps to accomplish those things. Do all you can for your own wellbeing. Do you go to meetings yourself, Alanon or Celebrate Recovery? That would provide you face to face support.
In my opinion, the best thing to do with any alcoholic is to get out of their way and let them reach for recovery. Some will, some won't. If he does, support him and encourage him, don't enable him. Stay separated for the long haul, as his actions over the course of a long time is what will tell if he is going to recover, or not.