Another response – you can’t forget but you can forgive and if you can’t forgive completely, you can forgive partially.
But there is no point in holding onto grudges -
Try to understand it when your father who was 80 at the time was still so mad at his sister for something that happened ten years earlier that he would not go visit her when she learned that her cancer had become terminal. That was in 2002.
When my father died last year, he was still mad about the whole thing and Aunt B… had been dead for over 5 years.
Grudges are self-poisoning.
Forgive what you must,
Forget what you can
You will all find out that life is too short for this kind of nonsense.
SRM