I have two 70-year-old parents that are in constant finger pointing. Of course, I'm in the middle. I recently went through a divorce so now I'm a single mom with two teenagers. Parents live next door and each one of them has decided to use me to complain about the other. Both claiming that the other person is not thinking or in the right frame of mind. I am desperate for advise on what to do. How do I know who is correct or what if both of them are starting to have signs of dementia?