Not everything gets "fixed" when we get sober OR recovered. A lot of people have issues far beyond the addiction piece. I'm sure you've learned a lot about having boundaries in your life, I have them too.. and they don't revolve around addiction but a more global view of what I will and will not tolerate in my life. That would include people that I find toxic to me, to my child, to my serenity. Regardless of his sobriety, it sounds like he has a lot of other 'stuff' to work on, and doesn't seem that he's willing to. That seems like a continued chaotic life for all three of you, and it's admirable that you've taken steps to distance yourself, and your son.