I see a lot of responses by people in their early teens. My response to them is, just wait until you are older. When you are that young, one cannot distinguish between love and a simple crush. I have personally never seen a teen couple last long, heck, my cousin once dated this one guy for about 10 hours, and she dumped him because she suddenly, and I quote, "Didn't love him anymore, I like this other guy now." end quote. and she was 12!
Now, I agree with the whole concept of there being a right person for everyone... well, almost everyone. I believe that sometimes, some people aren't meant to love, which might be because he/she is too jealous or maybe way self-centered to care about a partner's feelings.
Personally, when my first girlfriend dumped me, I didn't feel bad. I figured that if she didn't care for me, so be it. I wasn't going to cry over someone that didn't loved me, who decided that someone else was better than me. Nope, I just got on with my life.