How do i handle this girl?

Theres this girl in most of my cles. She started to shy-girl flirt with me (shes shy as hell) i.e., hair-flipping, looking at me and smiling and then looking away, looking around a room to see if im in it, the usual. At least, that’s what I thot it was. Cuz of this, I decided to make a move and ask her out. Right before I could do that though, her two best friends came to me and said she only liked me as a friend. I didn’t trust them, but still played safe for a few days to see if they were lying or not. Well, if found out from 3 different sources this same thing. My best friend, her best friend, and even her. (she did seem embarred and nervous as hell when she told me that tho). Now, she does the EXACT same stuff cept w/o the smiling. How do I figure this out? If shes just bein really shy, I can forgive and forget, but if shes playin some kind of game with me, I want her to stop. Help plz?