I do talk about that in this article: https://medium.com/publishous/i-no-longer-speak-to-my-parents-and-i-am-better-off-aa7ea75f9c6b
I personally extended forgiveness to my abusive ex, which was my choice. He was an active drug addict and a thief (see here for that). I understand why he did it (he has a disease), and I in no way condone it. I did have to take ownership for my faults just for my own healing: I stayed way after I should have. I was a codependent, a people-pleaser, and an enabler. I want to be better for my next relationship, and I had to let go and own my own shit to be better for my next one.