She lied to me about her being virgin, now I don't know if i still love her?

You just don't stop loving someone because they're not what they said they were. If you can stop loving her so quick, then what you were in wasn't love, my dear...it was lust. It takes a while to fall out of love, and I'm not even sure it's completely possible. If it is THAT important to you, then you need to talk to about it. Maybe she did it because she didn't want you to think badly of her, which she was right...now you do.