Well if she is breaking up with you, i wouldn't worry over it to much, i know it can be hard to get over it, but why would you want to go out with someone that doesnt want to go out with you? That is if she is breaking up with you, i would just look for someone else.
Your 15, life goes on. Try actually being in love with a woman, and then have it end, by your means or hers. It really sucks either way. Thats why I became a pirate. I get to travel the world, wear an eye patch, and have a bird sit on my shoulder. Life is sweet.