Jealousy; why does it even exist?

I know that I shouldn't be jealous at all. Cause he's mine, I love him & he loves me too, the way I wanted him to. But I dont know... there's something wrong.
Or maybe I just dont know him that much yet. *sigh.

It really hurts to see him so sweet with another girl. That hurts right? :( I know, im shallow. But it really broke a part of my heart.

I just wanted to be his ONLY ONE, not his number one. I want to be his center of attention. The apple of his eyes.. Cause Im hella sure he's mine.

I dont want to confront him, cause I dont want to do my mistakes before. I get too jealous. then BOOM! :( I dont want that to happen.

I love him. He is my sky's Sun. Without him, I feel like I dont exist.

I wish I could tell all those girls to stay away from him... how I wish.

But Im just a YOUNG sophomore girl, and they're all amateur junior girls.. I cant put up a fight.

But damn I'll fight like hell if they ever try to steal him away :(

OOOOOHHH. IM SOO CONFUSED!