My grandfather has dementia and has good and bad days. He thanks me for helping him and the next says I put him in prison. I moved him to assisted living and tried to make it look like home. The only family left to care for him is my sister and myself. Our dad was an only child and passed away with cancer 10 years ago. My grandmother passed 8 years ago with cancer. Grandpa is 89 and is in somewhat fair health besides balance issues and blood clots. I traveled to see my son and grandchildren 5 hours away. Grandpa starting in again on throwing him away and not caring about him. What do I do to stop this?