Show, don't tell.
I'm sorry to say, it's a rite of passage that he must be tortured until he admits he needs you like oxygen, and you must dress like a hooker.
Rite of passage... hm... well, I failed this one, which, as anyone knows, makes me the ideal teacher! Confiding with your beau would deny him the opportunity to demonstrate his mastery of hormones and the male gender role, mustering the nerve to make the "first move." Of course actually, you control all the moves, by presenting an irresistable sex object, despite being under significant developmental stress of your own. That is your challenge.
you should take the risk and accept it
how much do you like him? if you like him enough then tell him. he wont say anything first and being quiet is not the way to go. would there be a chance of you both actually becoming a couple? is it worth messing with a friendship to confess?
well being in a relationship is like being best friends with the person you plan to send your life with. i dont plan on getting into a relationship unless i am basically best friends with the guy. i think thats the only way. you may get mad at your best friend but you dont usually stay mad. i think if you have a bond like that then you can say something. if not then just wait. if he really is your friend, he isnt going anywhere. just dont wait to long.
do you want the friendship or the crush ba<x>sed relationship more?