My Friend has been yelling about things that I know are false. She has had brain cancer and strokes and a pacemaker put in. Example. Electric wheelchair was dead and I had put it on charge. Came in had dead wheelchair she told me she unplugged it one minute and like 10 minutes later aggressively told me she didn't. Then tonight I asked her to clean up her dresser and she brought up a shirt that her MIL gave her and said it wasn't hers. I told her it was and she started yelling she knows what clothes she has. I'm soooo frustrated with the yelling and the boldface lying. What do I do?