I think i might be in love...?

well im a 17 year old guy and shes 16 ive had her in one of my cles for two years now. and the first time i saw her i think i fell in love its a really weird felling but is it love or lust every time i see her its like time slows down and when we talk its like there is no one else around i cant really describe it. and every time i hear a song about a beautiful girl i think of her.