Today mum called to ask if I knew where dad was as he hadn't been home . I went to her house she asked again I then told her as sensitively as possible that he had passed away 8 years ago . It was like she had heard it for first time it was heartbreaking . Mum was diagnosed with early onset dementia alzeihmers type earler this year . She has suffered I'll health for a few years but have never had to deal with an episode like this. What is the best way to adress this again without causing so much upset for us both