Justin Looks So Sad!

What is JT thinking about here? We wonder...

Justin:
"Somewhere out there beneath the pale moonlight
Someone's thinking of me and loving me tonight..."
Britney:
"Somewhere out there someone's saying a prayer
That we'll find one another in that big somewhere out there..."
Together:
"And even though I know how very far apart we are.
It helps to think we might be wishing on the same bright star.
And when the night wind starts to sing a lonesome lullaby
It helps to think we're sleeping underneath the same big sky
Somewhere out there if love can see us through
Then we'll be together somewhere out there
Out where dreams come true"
[source]