my husband and i have lived with my grandparents' in law for several years, helping with chores, errands, ect. last january, grandpa passed away. about 3 months afterwards, grandma went downhill. she started secluding herself, loss of interest in socializing, hobbies, ect. For months I figured it was normal aging and grief. she is 80 now. anyways, she started showing early signs of dementia, and continued to get worse. She started being angry and cruel, insulting, blaming us for her problems and yes, even blamed us for grandpas death even though he passed from a broken leg and hip. she forgets literally everything, entire conversations, words, people, ect. she got lost for five hours going to get her hair cut at a place shes been going for several years. she neglects hygeine, and neglects safety. so about a couple months ago, my husband finally got to talk to her doctor, shes been refusing anyone to contact her doctor. he told the doctor about his concerns, because she wanted to know. he told her about what i mentioned above, and more, told her about how we looked up the signs of dementia and we are concerned about her health and safety.all she said was " ive heard so many stories over the years and i dont know who the bad guy is but sshe is already on anti depressants so i cant help". we were shocked. grandma always complains to people about us, she makes us look like monsters, even though we literally do everything we can to help her. she refuses help, and never listens to us and starts saying really mean things. The family members wont even talk to her anymore, and we had asked for help, which they refuse. my mother in law offered help but we rejected because she steals everything. a few years back she forced her way in, built up their trust, started taking her credit card and blew 30,000$ in an 8, month period. she justs wants to rob her and we wont let that happen. but please if anybody has any advice on what to do, it would be very much appreciated.