What hurts the most?

It's when you never meant what you said.
It's when you merely make empty promises to make me happy temporarily.
It's when I know that others are treating me better than you are.
It's when I know that you are the world to me, but I'm not the world to you.
It's when I feel that I shouldn't love you more than myself.

It's when I start to feel this way, all over again.