Please remember that you have lived only a small fraction of your hopefully very long and full life.
You will meet a LOT of people in this life. Some will hurt you, and some will make you feel like you are floating on air.
I am not saying what you feel isn't real... I am saying you've got so much life to live still, that you shouldn't go crazy over these first few "loves".
Send him an email saying "I think that you think that I hate you. That's not correct."
You will learn much in the next five years.
You could start by telling him that you DON'T hate him.
you did something hurt him.... you just need to talk. if he didn't change after talking, it means he need to run away but didn't find the way..... let him go.
he is mad...........
find another one.........
life is too big for you...........
You're alive good .