How can you get over your guy friend who's in a relationship? (nobody answers my question:/)?

[Alexandra]

I'm 16 and the guy Im friends with has a girlfriend who he really loves and has been going out with for 2 years and counting and I've liked him for 2 years and counting. He's told me twice he only sees me as a friend, nothing more. So I know I'll never have a chance with him and I've cried about it several times and he's seen me in person cry in front of him and he knew it was about him so that was embarrassing. How can I get over him? Just ignore him completely and cut off the friendship? This decision is so tough and It's hard to decide and it been bothering me every single day.. This hurts a lot and really puts down my self confidence.
And our friendship had been going downhill and wasn't as close as last year and we don't talk much anymore . I'm shy and awk around him anyways even though I've been friends with him for a while.
his girlfriend goes to another school btw

he's like the only nice guy that I'm attracted to at my school I have lots of other guys friends, but i dont have that same interest. Most of the guys at my school either have girlfriends or just have no hygiene or smoke pot or just plain douchebags.

he says I'm his best friend that's a girl but he doesn't act like Im his best friend. He's more interested talking and hanging out with his guy best friend and other buddies. PLus, I've been sick all weekend and today and he's barely busy on weekends and i know is always on his phone on twitter and posting on instagram and he didnt even once text me wondering how im doing and feeling...when my other 2 guy friends in a group message asked me how im feeling..they seem more like true friends..

[Esther]

i would love to help but i dont know how, i answered because you said nobody answers.

[Morgan]

You're just going to have to get over him. And trust me I KNOW it will be very HARD and painfull thing to do. But if he loves his girlfriend, and he only sees you as a friend, but you love him, and your friendship is causing you pain, I would try to stop being his friend.. Its better for you.

[SgtArmyWife10]

Sweetie, the only to get past this is to actually move on. Maybe you should distance yourself from him for a bit and try to look for another guy. There are plenty of guys out there for you. It's best to date someone else. Really thats the only way to really get past and get over him. i know its hard, trust me... ive been there. But you cannot allow yourself to get so upset and depressed.