Non virgin, bleeding.

So, the other day, it was my birthday as a matter of fact, my girlfriend and I, were going to have sex. We'd thought about it for a while. We've been together 2 months. Theres a few problems. To clarify, she knows I'm a virgin. She tells me, shes not.

But when we were going to do it, I couldn't fit inside her, she was incredibly tight, even as I fingered her, to try and loosed her, it didn't work. Then, as I was making another attempt, she told me that, when she had been raped, they tore tissue, and because of that, she bleeds a little everytime. But today, the thought came to me, is that possible? I mean,l I was fingering her pretty hard, and nothing happened, nor did she mention that could happen. So my question is, is it possible that it was "torn tissue" that she was worried about? Or, is she possibly lying to me and is still a virgin herself. Furthermore, could this possibly be a disease?

Enquiring minds want to know!