Didn't you just ask if it was ok for a 13 year old girl (you) to date a 19 year old man? Did you dump him because of the answers you got regarding the law? Or did he dump you? Sorry kiddo, it's for the best, he doesn't wanna be somebody 'girlfriend" in prison. 13 is too young to be thinking about boys anyway, just focus on your schoolwork, get good grades, go to college, then get an awesome job. When you're a well educated, gainfully employed adult you'll have your choice of guys. But if you fool around with boys now you'll end up pregnant, drop out of school, the boy will ditch you and you'll have no job, no education, and a baby to feed. Not exactly what guys are looking for in a woman.
I write down on paper how the relationship failed. So I can reflect & try not to 1. make the same mistakes 2. to also show myself not to settle for less 3. so I can pick better next time - Like learning from my mistakes. Then I write another list, what non-physical attributes I look for... this peps me up, always. Reflection is key for success.