Family Law Questions? Ask a Family Lawyer Online.
You can not force someone to go to counseling. If they are not treating you the way you wish to be treated then avoid contact with them.
Yes, I think you either have to take it, or not interact with them. That is the good thing about being an adult. You do not have to have contact with people you do not want to.
You can have an attorney send a cease and desist letter to tell them to stop contacting you, but I do not think you have any legal remedy beyond that.
No, I do not see anything in this that has a legal remedy to pursue. This is more of a family dynamics problem than a legal one.