So sorry. Unfortunately, they have the power to make trouble for you with your grandkids. If you are seperated from contact with them, how can you teach them TTATT?
I'm in a similar situation and it is so hard to hold it in sometimes. Take your power back. You be in control of what you want to tell them and how much...IF you feel they deserve to hear your private thoughts. Theocratic warfare in reverse. Think:"Pearls before swine...." Best to you....