not a mother-in-law this time, my grandmother goes crazy

So, I have a difficult family and difficult in-laws. The only person who acted normal was my grandmother, she no longer acts normal. Among other things, I accuse myself of not greeting her warmly with a hug and a kiss when I see her. It’s true, there are many people in the house, he lives with my mother and my brother and they have dangerous stairs. So the first thing I do is make sure my daughter doesn’t fall down the kitchen stairs, not greet everyone effusively. She told me that I feel disgust towards her and that is why I don’t hug her, that other people like my brother-in-law and my cousin’s girlfriend always hug her with love, that she loves me even though I don’t love her and that it hurts her because I am her favorite granddaughter and I don’t love her and that I am not suitable to do my job because I get angry. that I am made of porcelain and you can’t tell me anything and that I didn’t know I had such a bad character. That when she was pregnant (4 years ago) she noticed that I didn’t hug her wholeheartedly. Obviously I got angry, I told him that it’s ridiculous, how could he think of telling me something so horrible like that another person disgusts me and that he shouldn’t compare me to other people. My grandmother’s biggest complaint is that I hurt my mother (her daughter) because I don’t want her to hug me after physically attacking me a few years ago. By the way, my daughter and I were going to her house to celebrate my birthday. My grandmother practically raised me, I spent the night crying. I don’t seem to have a healthy relative.