Her smile faltered, but only for a second. She nodded simply, "Perhaps. These are busy times, I'm working a lot, we don't necessarily get much time together, but if we have an evening perhaps I shall send you an owl." It was the best she could do to give the polite brush off. It'd be too obvious to turn him straight down, but she definitely didn't want to bring Remus into that sort of environment.
Not to mention she had no clue where her husband actually was or even if he considered them still married. But she certainly wasn't going to say that. So she forced her smile back onto her lips and looked across the Atrium. "Strange about this evacuation. Do you know what the exact problem is?" Best to change the subject, it was safer that way.