It seems like there are way too many people involved in it. The first thing I'd do is make a distinction between who is really helping and what real buisness it it of theirs. You can't change the dynamics of his family. It sounds like you expected his mother to bail him out and she did. It sounds like your mother is frustrated, very frustrated. Your mothers input was invited. The problem is really between you and your guy. Are you planning to permanent no contact? A once and for all move? I
As far as your life and your recovery, what is your plan?