@Ttc42nearly43 I really feel for you, I completely understand that you would want the care home to acknowledge their failings.
You asked about my situation - Mum had a minor (ish) accident and was taken into hospital and patched up but when they discharged her after a couple of days they didn't put any kind of care plan in place so I was left to look after her alone as best I could.
They'd messed around with her medication in hospital and after a few days she collapsed and had to be rushed back to hospital urgently. She was in there for almost 3 nightmare weeks and because of Covid we weren't allowed to visit her, could hardly ever get in touch, had to fight for any information - at one point a nurse even told me on the phone they wouldn't tell me what medication they were giving her 'because that's confidential'. About my own mum. It was just awful.
They were actually going to discharge her, finally, but just as she came home she suddenly took a turn for the worse and although we got her home, we lost her a couple of days later. I've tortured myself over whether I could have changed things - realised that she was already ill when she came home the first time, and that the hospital changing her medication had just made things worse. But I've been trying to understand, through counselling, that I didn't have second sight and I was doing the best I could in really frightening and horrible circumstances. We don't know what was going on, how ill she really was, what else might have been happening.....but it's hard, so desperately hard not to feel responsible and that I didn't save her.
I'm so sorry you feel the same, it's a horrible feeling, I've never felt anything this bad, I don't think.