State of Pain, Denial, Frustration

Have you ever hurt so bad that you have nothing left inside you? Like you are empty, and all that is there is emptiness and pain? Losing someone kills. I am currently going through this. I have lost the one that I love most, the one that makes me the happiest, the one that I know I can just look at and know EVERYTHING will be ok. But now, he's gone. 350 Miles away from me. It feels like someone just stabbed me in the freakin heart and said, "I hope you live even though, in a matter of minutes, you will have nothing left. Good Luck with that!" Yeah it definitely doesn't feel good. I knew that it was way to good to be true. I was so happy. Actually, too happy. Having someone taken away from you is the worst feeling in the world. I don't know how, or what to do to handle it. Maybe I am over-emotional. I don't know. I have never been through this type of situation. I am gonna live in constant fear that he might find someone else and be happier. I won't know what is going on there. Is it bad to want them to hurt as long and as much as you do? I don't want him to be happy if I am not. This is not something I am going to easily get over. I'm in love with this person. YEAH, I am only 16 years old, and yeah, I doubted EVER that I could fall in love in High School. Trust me, I always made fun of those people who said they were in love at the age of 16. But Karma just bites doesn't it? I am so frustrated because I don't understand how something can happen to such a wonderful person like him. Why would God want 2 people to hurt so much? I don't understand. What have we done to deserve something so harsh? Yesterday, he left, I was in complete denial when I woke up from a nap. I denied that he was gone. This just feels like I won't see him for this weekend. But it's not. I won't see him until another month. Which hurts when I think about it. I had so much fun yesterday except for when he left and when I stopped to think about how everything is going to be from now on. This is all and emotional rollercoaster. At one point I am happy, then the next, I am in a state of depression, feel sick to my stomach, get all bitter, ball my eyes out, and then I am happy again. I don't get it. Why does it hurt so much? It's not like we broke up, and it's not like I am never going to see him. I don't think I have EVER cared so much for a person.
All I can say is I DON'T KNOW. I have so many questions. Questions that my friends can't answer. They don't know how I feel. I hate being here alone, having nobody there to understand.
And another thing I don't like is that he is up with all his buds and I know he can get over it, but why can't I? I have my friends, but I can't get over it....