Ennis,
Deep down you know that this thing between you two is no little, trivial passing thing. You know it.
You will not have him forever. Seriously. You won't. One day you'll wake up and find that he is no longer around.
Tell him how you really feel about him. I know it is difficult to say the words, but try. Write a letter if you have to.
And if you can't do that - write him a note, with only a few words and stick it in his bag the next time you go camping together.
Do whatever you have to do. Just be sure to tell him how you feel.
Trust me, he wants to know.