I tried to initiate D last week. Don't do it unless you are absolutely 100% sure from a place of strength and non emotion and not fear and emotion that you are 100% done with this person in your life. Trust issues and all. Otherwise it will backfire. Get your papers ready for that day. They may change their minds or feelings again. You are dealing with a deluded thinking emotional creature. Do you understand what detachment and boundaries does? It shows you are willing to walk away from this non sense. These power plays. It gives you value and self respect, it protects you, and your family. They may not care, or they may eventually care and snap out of it. Its a matter of self respect, value, battle of wills, what is right to you and for you. You cannot convince them, so let them go, and let them walk. There are no tricks or shortcuts.