Hidden Feelings.

I have this feeling for a friend of mine, but I don't think he would notice me. We're quiet close and all that, just having fun with each others company. It was quiet a while that we had bonded, like for almost 2 months we had laughing moments together. He would sometimes teased me, but it was still okay. And now, I think I suddenly had developed feelings for him, but it still won't affect him, we would still be friends because I know he doesn't like me at all, more than a friend is what I need him to be. But my wish won't be granted. EVER. Because I'm know, friends lang ang turing niya sa akin. And why would I expect more of him, he's leaving me anyway. But I know, he doesn't feel the same way, but somehow, at least he promised me, that we would still each other again soon. But I still have to hide my feelings for him. I sometimes get jealous when I would see him, with my other classmates. I kinda hurts me, and when I would always ask this simple question;

WHICH IS MORE HARDER, LETTING HIM GO OR FORGETTING HIM?