Is this girl lying to my friend?

She always fkn eyes me like crazy. She's always staring at me she's always hitting my shoulder. But when my friend told her I think she's cute... she's like oh... okay whose phillip? Which IS FKN BULL BECAUSE THERE IS NO WAY it is possible for her to not know who I am because I had like sopre year p.e. with her and she always stares at me and she talks about me to her friends. Now I'm a senior, she still always looks at me and when my friend told her I think she's cute.. she's like oh.. okay. Then my friend was like, " Dude... she doesn't even know you" Which got me PISSED OFF because it is like impossible for her to not know who I am.... so why is she lying saying she doesn't know me? or maybe she's a crackhead? If she just stares at me ALL THE TIME and I'm not delusional she always looks at me, but she doesn't know my name?