crazyhaircut94 said:
You're 15, and a thing like that will feel like it has crushed your entire world. It hasn't. There WILL be many, many more chances for you to have a girlfriend.
I should know, when I was your age(14 years ago, old(ish) person rant!) I was the worst, the most hopeless romantic in the world. I fell in love with nearly every girl I met and nearly always something went wrong; they were already dating, I was too scared to make a move, there were a million reasons it didn't work out. And it's not like I would have been an asshole or anything, many times everything could have gone smooth and cool, a few times it did. Mostly however, I just silently waited for the feeling to pass and did nothing. Somehow I manged to get myself together time after time. So it's not the end of the world, you'll get over it.
My advice is just to try to move on. Try to forget hopes of a relationship, at least for now. It will be difficult and painful, but that's just life. The world of a 15-year-old is so small and there are so few people that a single setback seems to have an effect on everything. Once you'll get older, meet new people and widen your perspective(trust me, it will happen), you'll see it wasn't that terrible. /partonising.
I didn't mean to sound like 15-year-olds would be ignorant and short-sighted, I just happen to know things will change.