Its strange but that desire to do something usually gets us in trouble by trying to control things. However, it can be used to fix the M, just not in the way we always think. Fixing and improving things about ourselves is usually the best way to have a positive effect on those around us also and it seems you are on that path. Your also acting from a place of strength and love without trying to change her. Many people could and would just be an a-hole and walk away saying they deserve better(or demanding better) without really doing the work to change themselves first. I think that's the reason DB is worth the effort if actually done.
Accept what is, let go of what was, and have faith in what will be
