Crushing Situation

Okay, so I like this guy, and I have since I was in 8th grade, and I am a junior right now next year a senior, and he know's I like him, but he says he likes/loves another girl and how perfect she is an how he never felt this way for no one else but her. Me and him are really good friends, like best friends, but I can't help but like him, but it hurts knowing he has a thing for another girl a thousand time's better then i will ever be. I am happy for him of course I am but how am I supposed to just sit back and handle the pain, i just want someone to like me for me, or just understand when I am in pain, I am tired of being in so much pain. I am tired falling for the wrong people and just getting hurt and have a worse self image of myself.