Girl's Behavior

Why doesn't she text me, even tho I think she's into me?

So a few weeks ago i started going out with this girl and we've always had a good time. But the thing is I was always asking her out and just checking up on her. Because of that I wasn't sure if she really wants me. So last weekend I asked her if she really wants something from me. She hesitated a bit and then she asked me If I was into her. I said yes and then I asked her what her anwser was and then she said yes (like in a hesitated way again). She then said she hesitated because she wasn't really sure If I wanted something from her. Anyways... a day later we went out again and then we kissed. After that I thought we had something. So when we went home I asked her If she's down to facetime and she said yes. This was on a Sunday, so a day later we went both to school. On weekdays we can only really see us at lunch (we go to different schools). It was good but because we hadn't had much time nothing really happened. When I went home I thought to myself why she isn't texting me. So I decided that I won't text her and wait until she texts me. I hoped that she would ask me if we could go on a lunch together again or that we should face time but she asked none of that, in fact she didn't text me anything. Its now been nearly 4 days since we went to lunch and she still hasn't texted me. Also a thing to mention is that, my friends tell me that she always avoids them in school and I don't know why (I used to go to that school but I switched schools). Does anybody know why she never asks me to go out or even just to face time? I know that it doesn't sound bad what we have but I feel like she doesn't want me (or as much as I do) because she is always so dry in text and never texts me first.
Why doesn't she text me, even tho I think she's into me?
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