Most Helpful Guy
There's no shame in your actions, plus he probably doesn't think so much about it anyway so don't worry about it.
You may be heartbroken now, but try to accept it and move on. Time will aid you and you will find someone else you like soon enough.
Also realise that when you're younger some guys are into girls later than girls into guys, so it may not even be a case of not liking you in that way!
Most Helpful Girl
Life goes on, just because you told him you liked him doesn't mean you will like him forever. It is okay to feel disappointed, but know this, you will meet plenty of other guys you will like throughout your life. It is not the end of the world that one guy doesn't like you back. If he doesn't like you back, someone else will.