The crush that is crushing me

For the last three years I have had a crush on a certain someone, I have always kept it on the low side until recently. This crush hurts a lot, I really don't want to like this person more then a friend. I want to be able to email him with thinking that I'll spill my guts. What makes me feel really bad is that I get mad at this person for no real reason, which isn't fair to him. I promised God that I would not date until I'm 18 but I believe liking someone as much as I do is bad to. The reason why I'm not dating is because I want to focus on God, but thinking of this person not only hurts but is making me grow further away from God. So hopefully I'll be able to move on and grow in Jesus even more.
P.S the people who know me please don't make fun of me but instead pray for me. This crush is really crushing my feelings.