Can it show a girl likes you? Grinding?

Well I was at this party the other night, and this girl who goes to my school added me on facebook randomly and I am in no classes with her, but she sees me in the hallways. So we are at this party and she comes ups to me and basically takes control of me and starts grinding on me . I have never really grinded before and she was like going really really hard. So, she was just going totally crazy on me soo. Does this mean she has feelings for me ? or is it just nothing
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Just so you know it was a high school dance. I am in high school lol
Can it show a girl likes you? Grinding?
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