He was joking, but Rose turned to him with a serious expression. For a long moment, she simply looked up, hazel eyes searching brown. She wanted to believe he'd be alright here. She was determined that every single person was brought here for a reason. There were kids, teenagers, people who'd never fought more than a parking ticket in their entire lives, and yet they had all been pulled here for some reason. It wasn't up to her to question why or how. If Anna were to be believed, and Rose had full faith that her friend was, it could simply be the amount of humanity they'd bring with them. Living day to day lives that Lucifer would hate so greatly that he'd be pulled to his breaking point.
The man in front of her, alien though he may be, was more human than so many she'd met. And he loved this planet. He'd fought for it time and again, had even died for it more than once. For however weak he might think himself now, she believed in him. The seal had made the right decision. And, if it was smart, it would bring every other regeneration of him as well. Because no one else would give this fight as much heart as he would. No two hearts pun intended.
Reaching out, she rested a hand against his shoulder. The small touch, however simple, sent her reeling, but she didn't move. "There is, actually," she said quietly. "A frequently asked questions guide, a website that Sam's set up, all sorts of books and things in the library. We're not unprepared here. We have angels on our side, and for that matter, we have demons, too. All working together. We're not alone." He wasn't alone. There was Romana, of course, and Leela though Rose had only talked to her a time or two, and even if the two of them fought like cats and dogs, he had himself, as well. And, for better or for worse, he had her.