What is going on with women who refuse to leave an abusive relationship? I am seriously starting to believe it is some sort of disorder. I don't mean to insult anyone or judge them. No one knows what someone else is going through unless they walk in their shoes. I am genuinely trying to understand. How can people help?

My Ma is now 61 and been with my Pap since she was 16. Hes been awful over the years so much it takes too long to put into words. I left the house at 16. He has mellowed somewhat with age but is still not what I would consider a loving husband. I wish she could have experienced love as it is supposed to be.