My 88 year old mom tells him she does not love him and does not want to live with him anymore. she yells "SHUT UP" at him when he tries to say something. She tells him he is a liar and a sorry human being. She is very judgmental telling him he will "bust hell wide open". She is on a anti depressant. I seemed to work for a few weeks but 5 days ago it was like turning on a switch. We want to talk to her about but we are afraid we will set her off even more. What can we do?