Rose Tyler. Defender of the Earth. That was what he'd called her, and he;d looked so proud. But somehow, now, it seemed like she had done the exact opposite to defending the Earth. To her, it seemed as if she was incapable of defending anything.
She knew the dimensions of each universe were collapsing. And Torchwood had no way of telling if it was because of her incessant use of the Dimension-cannon or... well, not. They'd had no idea. But she saw the lingering eyes. The stared at her, their looks were angry, but unsure and scared. She knew what they were thinking: 'It's your fault, Rose Tyler. It's the end of the world...
end of the UNIVERSE. Every Universe. And what are you going to do about it? You've failed in finding your precious Doctor, now we're all screwed.'

Of course they would think all of these thoughts, what did the Doctor mean to them? They'd never seen him, in all his glory and wonder. They'd never seen him fail either, yet they'd doubted him already, and that wasn't fair. Because he'd saved so many people, and never asked for a thankyou, just carried on. Saving the stupid planet, and so many others,
again and again... just because he couldn't stand to see anyone suffer loss and heartbreak the way that he had.

So she'd carried on. Jumping continuously, universe to universe. Trying to find him, even when the stars in the sky had stopped shining and the darkness began to over shadow everything in sight. She'd carried on.

Because they were meant to be together, no matter what the universe had to say about it. The oncoming storm and the bad wolf. Nothing was ever meant to break them apart, but something went wrong. And that's why she had to find him. To fix the wrongs.