"That makes sense," she says, momentarily considering her own connection -- not to time, precisely, but space. A space. She knows if something drastic had been altered, even if she doesn't necessarily know precise details -- she imagines it's probably something like that. One less thing to worry about! Although if something did happen to him, it might be suitably dramatic and disasterous. Ah... well...

"Not if the TARDIS can't wait," she demurs by default, "I wouldn't want to keep you from her."