Rose was surprised - for a moment Homura had to struggle to see why, and it vaguely occurred to her that she might not have been spending enough time with people. It wasn't as if her people skills had been exceptional to begin with, but… well, it had been a long time since she'd really talked to someone. Was it the time travel thing? Maybe she shouldn't have said anything.
"The universe still exists, five billion years on?" She had to ask - just to confirm it - to confirm that what she'd been told about hadn't come to pass, the universe hadn't burned itself out yet. Although then it begged the question why not and that threatened to drag Homura down a very unpleasant path of thoughts. "And you were in Kyoto in the Kamakura period? That's incredible." Before becoming a magical girl, she'd probably have had far more questions - what was ancient Japan like, what was the future like? - but now, and here, she remained self-interested. (Before becoming a magical girl, she probably couldn't have immediately identified historical periods, but that's what a lot of time repeating the same material in Japanese History will do to you.)
She looked up at the sky when Rose pointed - she knew aliens existed, or, at least one group of aliens, and that that meant that there were huge numbers of places out there, but she'd never thought of actually seeing them herself. "And now you're stuck here? How long have you been here?" She hoped the answer wasn't years and years and years, because that seemed to bode worse for her chances, for anyone's chances of getting out of there.