I'm 6 years older than my sister. We weren't close when we were younger due to the age difference but now we are in our thirties and have become closer. We also both have children of similar ages.
I have never got on with my mother - personality clash. To be honest I can't stand her. If it weren't that my children love her and dad I wouldn't bother contacting her beyond christmas and birthdays. My sister said that she hoped she didn't turn into our mother. I said there was no danger of that as my sister is a lovely person - patient, tolerant and kind. She then asked if I remembered the incident that happened when she was 9 when our mother had been walking her to primary school. I said "no". She then told me that our mother had lost her temper and slammed my sister forcefully into a brick wall several times and injured her so badly that she had to be taken to the school nurse.
I was stunned. I had no idea. I know our mother has a temper but she never scared me. My sister told me that this type of outburst happened several times - she was verbally and physically assaulted by our mother. My sister is still scared of her and she is also scared that she is going to turn out like that too.
I don't know what to do. I don't know how to help my sister.
I am twenty-odd years too late to help her and have the abuse stopped. I asked her why she didn't tell me, I was 15 fgs I would have reported mum, told the school, I don't know but I would not have let the situation continue. My mother lost her temper with me frequently and yelled and screamed but never touched me. I think she knew that I would not have tolerated it.
I feel sick, ashamed, disgusted. How did I not know this was happening?
Worse, my sister clearly thought I did know and that I took my part in covering it up. That makes me feel physically sick and deeply sad.
I asked if our father knew. My sister doesn't know - she said she didn't tell him. If he knew about it I will lose all the respect I have had for him.
I have been going over this in my head for a week. Should I confront my mother (and father)? Would that make it better for my sister? I can't see how it would help her (although I know it would make me feel better in an immediate cathartic way if not long term).
The next time I will see my parents will be on Christmas Day at my sister's house. I'm not sure I can sit and make small talk without telling her that I know, and how I feel about what I know. I'm not good at keeping secrets or keeping my feelings hidden and the revulsion I feel for my mother is going to shine through me.
Please help me - what would you do? Can I help my sister?