The most supportive and loving thing you can do for him is to continue what you are doing: taking care of your own life for now. It is not a passive resignation, to continue on with your life activities apart from him, it is an action step. It is a decision you make, an action you take, while you release him to his work. Your higher power has separated you from him and you can surrender to this for now with the faith that what is happening today is part of a plan for you both.
Sometimes when we are hurting, we just don't have anything in us to take care of someone else's feelings. He needs not to have to take care of yours. And he would have to, if the two of you tried to do any repair on the relationship right now.
Your recovery paths must be parallel in the first year of sobriety. This is the advice of most experts on addiction.
As one famous counselor says, "It's hard to lose an alcoholic." They seem always to show up again, and sometimes again and again.
I hope if he does decide to contact you in the future, by then you will have solid recovery on your part which would make you a positive, not a negative, friend in his life.
For now you are doing the right thing.