<human>: Me: 17, M
Her: 18, F

So its now 3 months into my junior year in high school, and already I'm in a delema. This summer, i started getting in shape by running and working out. I lost a lot of weight and got leaner. 

This year, our high school scheduled homecoming only 3 weeks after school started. In one of my groups of friends (that was just established about 9 months ago), there is this one girl, who i kind of have a crush on. She has a boyfriend who is off at college (but they still see each other every few weekends). Me and her never really 'hit it off'. i wouldn't even have classified us as friends. But about 2 weeks into the school year, she started talking to me, and calling my name in the hall way (Something she would never have done before). we have 2 classes together, back to back, and she also asked me to walk with her and one of her other friends. I somewhat went with it, at the time, i was mainly confused. I did not however, try and go behind the boyfriends back and get her to cheat etc. If she was single, i would have thought she was definitely trying to get my attention/interest. BUT she had this boyfriend. anyway, i got my act together a bout a week later, and slowly started drifting away from her, until we didn't even make steady contact. now, we don't talk too much with each other. I still feel like, she might have some attraction towards me, and i have some towards her (but i'm careful not to show it). 
could someone help me out? i don't really understand what happened/why, and what i should do.

thanks guys,

P.S. this is obv. a throwaway account.

Could you distill the essence of the text into 1-3 sentences?
<bot>: girl hit on me while she had a boyfriend who is at college (she's not a slut either) what do i do?