song lyrics keeping me awake... (it's a possible work in progress)

...so don't ask me if I'm happy
'Cause you know the answer
Isn't good
And don't try to make me smile
Knowing I can only do so for you
But when you leave me
I know where you're going
And I know you
Can never
Be mine

It's getting late
Well passed midnight
And I've gotta few things
On my mind
But they'll wait til later
As long as you're here
By me
Oh, I know
I know you've gotta get going
Someone's calling you back home

Don't ask me if we're happy
You already know that answer
You already know
You already know
And I'll kiss you
Despite the lump in my throat
And the pain in my heart
Oh, I know you can never
Be mine