And I dont think sex is dangerous, or that I would be scared to do it - it's just that I find it disgusting.
Sadly I know how this feels. Sometimes after sex, or even just harmless masturbation, I feel sick and ashamed and sometimes for days after.
Do you expect a similar reaction to sex if you are to ever have it?
Destroy the future, she's explicitly said that she isn't sexually attracted to anyone and that the thought of sex with anyone makes her feel ill. As such it is clear that no she isn't straight, bisexual or lesbian.