So, today's phone call followed same course as last week.

I was awaiting result of home Covid test, so called her. After talking briefly about that and what it entailed, she then turned conversation round to how hurt she felt that I was not contacting her. Usual fifteen or so minutes of diatribe about how cruel I am being and that she didn't expect her daughter to behave that way. Then proceeded to tell me how kind everyone was being. She hopes to get supermarket slot next week, so contrary to what she's said, there's no help from my brother. Then made a big show of how my aunt is going to pick her up tomorrow. Her grandson's girlfriend is a hairdresser so will do her hair. To quote "that's the act of kindness that I like". Another guilt trip!

Then she said she didn't know the cause of the problem. When I got a word in, reminded her of the emotional blackmail regarding sister-in-law's actions. Was then accused of bringing up the subject yet again. Seems to take great delight in not recognising the cause and accusing me of going over old ground. Ended with tears again and her ringing off without a goodbye. Needless to say, not visiting this afternoon.

Test was negative. May try and get doctor's appointment, if only on telephone. Perhaps I need a therapist. Like the contributors here, a neutral may offer a solution I've missed.