Thank you, everyone, for the advice and feedback. You all rock.

I visited with her today. Our visit went well. Her mind was clearer than I had experienced in a while. For her sake, may this clarity linger for a while.

She has, indeed, lost many people in her life. She was married and had her first child by the time she was 16 without having finished school. By 19, she had 2 son and her significantly-older husband divorced her. One of her sons was murdered at 19 and the other died of complications from drug use when he was 38. When my grandmother died 7 years ago, she lost the person she depended on most for her entire life. She has experienced more pain than I can comprehend and I do my best to keep this in mind. However, my personality type is the logician. I get intensely frustrated at times with the blatant absurdity of her lies. I become blinded by logic & thinking and I forget the person and emotions behind the lies. This is a major issue that I have to improve, because she does deserve love, care, and understanding.