What do I do if I'm in love with my boyfriend and I like another guy too?

I've been with my boyfriend for a while now and I'm in love with him. He's extreme on the purity thing and won't kiss until he's married. That's a while from now since he's 16 and I'm 17. I kind of like another guy that I'm friends with. I'm dying for some lip to lip contact and I feel like if he won't kiss me, I might cheat on him with this other guy out of desperation. I really do love my boyfriend. HELP! What do I do?