You can't know

Smiles playing on frowning lips.
Hiding.
Iknow you like her.
there's something.
Its there, hidden in the way
You speak of her.
You ask how I am, but
I can't tell you.
And you want to be with her.
It kills me.
You ask why I'm acting strange and
I'm sorry.
My lips are frozen from my icy heart
Moving frost-bitten blood.
I can't say a word.
I can't tell you.
I return and you ask why I left.
Now is the time,
For me to forget you.
I just can't.
Its for the better that I forget.
Best for you.
Goodbye, I'm sorry you'll never know.
Know I love you.