What makes you jealous and how do you deal with it

Yes, I know what it means to feel jealous.

Is it strange, when you have in your life someone who means everything to you, who is your very heart, to become possessive, to want him to be yours alone, to want to be the very breath he takes?

He made me jealous once.. It felt so wrong, so ugly.. And it hurt like nothing's ever hurt.

But, you know, people are not things, so there is only one way they can be yours and that is if they want to.

And is someone chooses to belong to you, then you have no cause to be jealous.