I have a personal experience to share - not sure whether it will help or not. My brother was one of my abusers as a child. When we were both adults, one day he called me out of the blue to apologize. For whatever reason, the pain and helplessness this stirred up in me was not worth accepting the apology from him. I never held him completely responsible for what he did - we were both raised in a violent, abusive, sexualized home. I believe he was just doing what he knew. If you feel approaching the one who hurt you in the past will help you - then by all means do it. Just make sure you are prepared if it doesn't turn out the way you expect. And make sure you have a lot of support available if you choose to do this...

Good Luck with whatever you decide