The Doctor knew his time with Rose was almost over, he'd felt it while they were in London. A storm was coming. He decided to make the most of what time they had left by taking Rose to all the best holiday planets and some planets that weren't populated.
"Rose?"
Rose tilted her head up and looked him in the eyes, seeing all the pain he hid behind his joyful facade.
"What's wrong Doctor?"
He smiled and his eyes softened.
"How long you gonna stay with me?" he asked, knowing the answer.
"Forever, my Doctor."
And though his hearts broke at the knowledge that she couldn't keep her promise, the knowledge of her love was enough for him.