I cant get her out of my head!!!?

Be honest ! Both with yourself and her. Tell her how you feel and then ask her how she feels about the relationship. Maybe she doesn't want anyone to know about the two of you. Does she seem interested in anyone else? In any event, ask her to be totally honest with you and you be totally honest with her. What you find out may hurt your feelings and maybe she needs space or just wants to keep things light, if so the best thing you can do is to back down, then start to find someone else. There is an old saying and I can attest to you that it is true. "If you love something, set it free. If it comes back to you then that is love, if not, then you've lost nothing."