The Doctor tilted her head, looking at Jack for a long moment. "Maybe. Eventually, I'm sure. But... Not right now, you know. I mean, who wants to get into a misery-fest over double-genocides when they're already upset? And there's all these shops I haven't finished exploring yet, and I need to get parts for repairing my TARDIS, and..."
She was making excuses, not really sure she wanted to run into someone who would be a mirror of her. Well, male. And probably older. And who knew what she would turn out like as a male?... She was really stuck on that, at least when it came to herself. Just...
"You really are bigger on the inside, no matter what universe you come from. It's really nice, that." She leaned forward to hug him, a bright smile on her face that didn't quite mask the mix of tired and guilt and just plain afraid that she felt. Not that she was about to admit to two out of the three.