Hello Suns.
This is my first post on the Support form but i hope this helps.
me and my girlfriend had the same issue but she was not raped, but she didn't enjoy it either as much and it was not that we weren't good together, but more of a mind set matter. as soon as she convinced her self that she will do everything to enjoy this stuff have been changing and she was even in the mood to try new and more exciting things.
that was the one time, the second time was a form of depression, as soon as we got some meds for her to relax more and forget about that depression, i could see a 100% difference in 1 hours time from taking the meds.
see its more like this:
your body can be in the mood to enjoy this and your mind without knowing this you wont be enjoying or wise versa.
this helped for us, maybe it will help for you