I am 13 but I haven't had one yet. (at least not real)
When I was in 2nd grade, there was this boy and we promised to marry each other. There was also another girl who 'loved' that boy. We used to argue about who would marry him.
He left the school at the end of 2nd grade. We never kissed or held hands or anything like that. Now looking back, I think that he was a jerk.