My FIL had dementia. So far, we've been able to keep him in his house. He has no memory of the death of his wife a few months ago, ne never ask about her or mentions her. It was so weird. She stayed in the bedroom for months with someone there taking care of her. He'd walk by to go to the bathroom and never say a word. I hear that in some dementias you lose compassion. He stopped talking to her way before this, but would speak if talked to. She hated she had no good conversations with him the past year....Now, we kept the sitter, she orders his food, keeps the house clean, keeps us aware of any changes. He sleeps, sits in his chair, reads the paper (or appears to read it), watches TV, sleeps.... He has advance prostate cancer and before he lost all his marbles he let us know he does not want any treatments for anything. We just promised to keep him at home as long as possible. He's big so, it could be he'll have to go to some home at some point. My MIL, we could manhandle, but him we wont be able to. Its really sad to see him this way. He was a brilliant lawyer who worked on government stuff. As long as we dont change anything with his routine he's happy.