You haven't heard from him because he is an alcoholic.
They are not consistent. Even if he isn't drinking, he is still going to have those unhealthy patterns within relationships/communication until he really works on his recovery.
It is a simple answer to a painful question I know but trying to figure it out will drive you nuts (I know this from experience).
Just live your life wish him the best and keep posting. That's what I'm doing
My guy has cut off contact, I was devastated. But all the wondering in the world won't change the situation so I let it go.
Trying to expect someone who drinks or in early recovery to be a responsible part of a relationship isn't realistic in my opinion.
Be good to yourself and Al-anon does help.