Am i inlove with this guy?

im not the type of person to "fall in love" with guys easy like alot of typical girls (im 17) but with this guy iv been dating for 3 months now, im soo close to him and i can tell him anything, and if anything happens between us i get really upset, with other boyfriends iv not boyfriends iv never cried or never felt 100% comfortable around them. is this love?? i dont kow what love feels like, but the feeliing i have is definitly something strong ?