How Do I Leave?

I'll look out the window
one last time tonight
hoping I'll see you
but you're out of sight;
You know what they say,
"outta' sight, outta' mind"
and though I can't see you
my heart is not blind;
I know I still love you,
you're here in my heart
I wish you were with me,
instead we're apart;
This break-up has caused me
a great deal of pain,
and I want to keep trying
but is there anything to gain?
I see you don't love me
like you once did before,
I need to move on
but I can't close the door;
So many memories
once were special and true,
and now that it's over
I don't know how to leave you.