You want parenting classes? And she hasn't gone far enough in getting them? It's up to her? Why? Are you part of this relationship, or do you just observe and report to us here? You want to heal the relationship, then find MC or a Retrouvaille weekend and tell her, "We need to do this. Let's sign up." You want parenting class, then find it and sign up. You've been told to lead, but all you do is observe and complain.
