I dated a gal with a similar circumstance, abused by an uncle at a young age, lost her father at a young age.
She was totally unpredictable from one day to another, she turned out to be functional alcoholic, and she would sleep with EVERYONE when she got drunk (which was all the time) to find self worth.
One day she just walked away, never said a word just bailed.
It was a good thing because she is a walking time bomb/disaster..
I learned that you cant save people, just yourself.
Hang in there.
As I've come to learn, women who are sexually abused at a young age tend to do one of two things:
First is to become sexually promiscuous (think pole dancers, hookers, adult films that kinda thing, serial cheaters) and the other is to completely withdraw.
Mine has completely withdrawn which frankly is depressing, considering she did that long ago.