I always stay

You will remember her when you have no one left,

that even when you hurt her

she was always there for you

And that's when you'll know,

that everything that you've been through

She never left, 

But by the time you realize...

It will be too late. 

Don't you realize? I was always there for you even though you keep on pushing me. I'm always there even though you don't need me even though you don't like me at all... I always stay no matter what because I believed that someday somehow you will realize my worth and I hope it won't be too late for you to do so.