I like this one girl in my college but she reaches to me only when she needs somthing?

so i came in contact with her because we share a similar lecture, initially she reached to me first and later we would talk about you personal life. But lately she only texts me when she needs something like assignment, even when i called her she texts me "did you called me?" and dry texts me however she does talks with me if she sees me around the campus. i dont know what to do?

I like this one girl in my college but she reaches to me only when she needs somthing?
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