My mom is the same way. When I was growing up, I was severely physically abused by my father, yet when she hears news stories about child abuse; she says that she would divorce any man who hurt her kids. She often denies that the abuse ever even happened. She also had very strict rules for me and my siblings, yet denies getting us in trouble just for acting like kids. I think it has a lot to do with narcissism in my mom's case. She can't ever admit when she's wrong. Sorry that happened to you.