Mother-in-law living with us and she has Alzheimer's

I love my mother-in-law but lately all she wants to talk about is going back to Ohio she thinks she is a free loader and is always cold. My husband won't turn the heat up. I know older people get cold. I wanted to take her to a Senior day care in Concord NC where she could be with other people her same age once or twice a week but my husband doesn't think that that is necessary. I just would like to know how to make him understand that it might be good for her.