Abused sister wants to tell her story to her husband's fiancée

I had a nervous breakdown when I was 15. Afterward, I said, “I'll never forget what he did to me.” My mom finally decided to get me a therapist. Through years of therapy (I'm 25 now), I have experienced healing, grace, and forgiveness, but I think that's something I need to know for myself and nobody else's business.

Even though my parents know exactly what my brother did, they continue to try to mend our relationship, even though I have expressed that I never want to be in a relationship with him again.

Also: Some conversations may seem more like an interrogation

My brother is now engaged to a woman he has been with for four years. She has met everyone in my family except me. She has never contacted me, which I find odd. I know my brother hasn't told her the whole truth about what he did to me as a child because he still tries to downplay it.