I need you in my life

I'm lost without you.
I need you in my life.
You're the only thing that keeps me sane.
You are the reason I'm alive.
You're the reason I get up in the morning.
You are the one who I live for.
And you don't even know it.
You don't see me when you look my way.
You don't even know what I go through.
You don't understand how much I long for you.
When I'm near you I can barley breath.
I need you in my life.