My father in laws girlfriend treats me and my husband differently because we are autistic. She thinks that means we are the r word and has spoken to us as such. I told my husband that we will tell her she is not allowed to talk about autism or mental ability to us anms she knows absolutely not what she,says. We also avoid her as much as possible, try not to be left alone with her and I just don't give her things to talk about. People need acceptance and respect, not stigma. What you did by cutting her our was good. All I can say is avoid these folks like the plauge they will never get it. Merry Christmas to you.