i feel frustrated

soo.. i know this one girl irl and i genuienly can't tell if i have a crush on her or not.. but if i do.. the problem is that.. SHE LIKES GUYS!! :C and guess what? i'm a girl. but ofc i'm not sure if what i'm feeling is even love or is it just me liking her as a friend. ugh.. why am i cursed with such thing? when someone is nice to me, i get this feeling that i can't tell if its love or not.. i hate human emotions.