Denial, Revisited

So here we go
Having the same old fight again
Though there she goes

Same old game that never ends
If i could say all the right words
I know i could make you stay

If i could say all the right words
Things would work out alright

And if you go
I would believe
That it's forever
And you can go
I'll never leave
'cause it's not over

Replay last night
Talking out don't make it right
I know she's tried
My whole world is her
And though its gone now

And if you go
I would believe
That it's forever
I won't let go
Even if she
Says that it's over
I know it'll be
Different this time
If you just stay

And when we wrote this story
How did it end?
It was you and me for all our lives
Go on don't say it
We'll try again
And if i just hold you
We could last

But she's got salty tears down her face
And it means that god this is the end

I've waited for you
But there's nothing but now i can do

How did you know?