WHAT IS SHE TRYING TO ACCOMPLISH BY ACTING LIKE THIS?

i got a crush on this girl and today i notice that everytime i pass through the hallway she hang out with her friends she is like texting and not looking where im staying at but the thing she does that when i walk trough there and today one of them friends was starring at me and the other kept looking my way twice....but it is funny because before i arrive there my crush is talking to their friends but when they notice me she turn her backpack on her leg and move her chair the other way and start texting and not looking anywhere...im not stupid because it seems like they were talking about me since one of their kept looking my way and turn her chair just a little the way i was walking by...

anyways i havent talk to my crush since last week but a week before that one she asked me if i got a gf and i said no then i asked the same question but i knew the answer before hand so i wasnt surprise when she said she does have a boyfriend....anyways i only said hii to her in the next 3 days then the last day of that week i found her and i talked to her for a few minutes then i said bye and she said bye.....but she asked me if i had been busy that week and i was like yeah super busy with hw and shxt lol i think she asked me that since i didnt talk to her in the next 3 days...

so what games is she trying to do?? i mean one of their friend was starring at me and the other one kept looking my way!! whats going on? im lost now