From age of 11 my SF was abusive sexually to me and my sister. Cut a story short my mother chose to stay with him despite us putting in a court case against him about the abuse. She is still with him..I am early 50’s now and I cut contact with her from the age of 20 as she would never admit he had did these things to me and sis. I have a pretty successful academic career, about to qualify with a PhD and wonder if I should invite mother to my graduation? Sounds weird, but when do you forgive someone?