Let me first clarify the problem. It's not that she's apathetic so much as that she dislikes touching and hugging. The thing is, she wasn't always like this. Apparently two or so years ago she loved cuddling and hugging (she says so, as do her parents), but since then she has started to loath it.
Now, for a period of ten or so months in between me meeting her and her being normal she hung out with the wrong crowd, and there was one girl in particular who I believe (and I base this on nothing more than a guess) made her see intimacy as something disgusting.
The reason I say this is because this friend of my girlfriend would hang out with my gf and take her to her boyfriend, where they would have sex, usually while my girlfriend was in the other room, and sometimes even right in front of her. Her friend was 14 at the time (my gf was 15) and the guy was like 19. That friend continued to pull more scandalous stunts, by being with dozens of boys and men (of up to 25 years old). Eventually, my gf realized how vile this girl was and stopped hanging out with her.
My question is, could this have caused her to become so emotionally damaged that she dislikes cuddling with me (even after half a year together, despite the fact that I am, her words, the love of her life)?