I think I have posted about this a while ago, but in light of your comment I'll post it again. Didn't really want to dwell on it, but I think you're right and it's relevant.
W is a rape victim. It happened about 18 yrs ago I think. She's never told the exact time, I just know where she was living at the time and that she was in college, and that's about 18 yrs ago, so early 90's.
I do think that that's one of the things that she was talking about when she said that C and her talked about stuff that she's never really talked about or worked through. It never seemed to affect our sex life tho. I guess it could play a role now, in this sitch tho. Earlier on in the sitch, I have asked her if she was interested in someone else and she's always maintained that there is noone else. That she just has no sexual desire period.