My mother has been diagnosed with moderate vascular dementia. I was told it is better to continue to keep telling her the truth about questions she asks such as whether her parents are still living. She also imagines people are living with us, or that her old and original bedroom furniture is just rental furniture. When I try to explain to her that her parents are deceased, she gets upset and cries. When I tell her her bedroom furniture is her own and not rental, she gets mad at me. I am concerned if I go along with her delusions, that one lie will lead to another and become a huge problem. Plus, I don't feel good lying to her. What is the best way to handle her delusions to keep from the tears and fights?