There’s something off with my husbands ex wife’s mother. Step grandma is disconnected, talks at people and doesn’t listen. A little history. She abandoned her first husband who was very ill and comatose, left the county and started a new life with a man who was over a decade younger than her in a new city where she knew no one. She took her kids with her who were teenagers at the time who knew no one and had no family or connections. Fast forward to decades later. She is no longer with her second or third husband. She cannot Connect with people and has never been able too. She is very unreliable. She is talks badly  behind everyone’s back including her own son and daughters and her husbands at the time. She’s very disconnected and unreliable and sleeps a lot and blows people off due to her sleeping. She has never been able to talk on the phone or have a phone conversation. She is in her sixties now and people think it’s dementia by it is not. She has been evaluated by a doctor who says she doesn’t have it plus she’s been this way since she was in her 20s so it’s not new behavior. She also spends money like crazy that she doesn’t have and has even borrowed money from poor relatives to continue her lavish lifestyle herself. She has burned many bridges. What is wrong with her?