Does this mean he's interested?

there's this guy that i like in my class, we talk everyday..he lets me listen to slow love songs in class, he's always sayin: "i thought u loved me" to me and everytime i walk with him to his locker, he hugs me tight with his face in my neck. today he asked me who i like in the school and i said "noone" then he juss kept asking me. he also put his number in my notes on my ipod touch and asked me out to lunch...does this mean that he has some interest in me??? i'm not sure cuz i see him with this girl everyday last period walking together...so that kinda threw me off