Most Helpful Guy
It is your body responding to not receiving those chemicals that your get when your with someone you are in love with.
Most Helpful Girl
Its possible that you grew attached to him. You and him both bonded and you really enjoyed that experience. And now he is gone out of your life. So yes its going to have you feeling all sorts of emotions. I been there before, so I know how you feel. Slowly start chatting with other guys online or go out. Its not going to be easy, this I can tell you. Its going to be days where you will miss him, days where you will call and text him only to not get a response or him beinf nonchalant and not show any interest in you. But after awhile you will get over him. It just doesn't go as fast as we will like.