Is this girl schizophrenic?

Lately i have become very confused...let me explain. There is a girl i have known for 3 years, btw she is very smart and attractive in my opinion. As time went on we gradually talked more, but it was this year, about 8 or 9 months ago, in which we became relatively good friends. We usually talk about norm stuff and we have gone out before, with other friends. Lately we have begun to know personal things about each other, for example she likes partying and is...well, a self proclaimed addict, strangely though...she is a virgin...yeah she is a little weird:). Anyway, this week things have gotten crazy, crazy as in she wants to have with me. We haven't really talked in while except for today over the internet via instant messanger. I asked her if something was wrong and she said yes, but it wasn't concerning me. We were supposed to go out today, but she just brushed me off saying that she didn't want leave home..."i feel safe home today so im gonna stay"...-cont-