You in therapy? Therapy can make all the difference with this. A good therapist will know how to work with survivor's guilt.

He was the perpetrator.

You deserve some freedom from this, good thoughtful therapy, hard work, increased understanding of what happened to you and a chance to debrief will help.

Something to think about, the fact that you feel concern means that you are humane and good. It is a healthy response. The abuse was not your fault . With therapy, you will be able to move through this and eventually even forgive yourself and reclaim your own power.

(I don't know if I put this into the right words, but I do care, I do hear you, and I so hope you get excellent therapy.)