Why does he keep looking at my !!?

Ok, so there's this boy in my homeroom, who i think is into me. And everytime me and my best friend sit down, while i walk down the aisle, he keeps looking at my ! (I look back..kinda). And idk, but he also asks me weird questions like, "Do you like pants alot?" I'm like wtf?? I need help! seriously! People are now starting rumors and stuff about it! (idk how the fxxck they found out) But, im serious! i can't live like that anymore! and yea yea, i told the teachers, but they just say "mm-hmm", I've told my mom, she talked with the teachers, and still...NO PROGRESS. help!