I can certianly understand how you feel. My children have blamed me for all their crimes and every thing BAD they ever did. It was all because of me.
Hmmmph!
Addicts are always blaming others for their being like they are. There comes a time when they need to become responsible adults and stop blaming others. This is what the program teaches.
In his heart of hearts, he loves you. He just doesn't know how to deal with left over anger and resentments.