Its the heart that stopped beating

When im with you, i forget the world.
When im with you, its you all i see.
What is this madness i feel?
You bring me to cloud nine.
But once i touch the ground, i know ive crossed the line.
Its knowing what i want, having to have what i need.
In my life its all about abiding.
And with you i can never be.
Why does it have to be?
Why do i have to end it?
How can i make you understand?
In this life, my heart can never be amend.
Its me not being able to let go.
Because its me im feeling sorry for.