[Mulder loves talking about the City, but whatever is wrong is nagging at him incessantly. It's Scully; he doesn't doubt that for a moment. But something isn't quite right about her. He takes a seat; not too close, not crowding... Not even taking as much liberty as he usually might, because they're partners, even if they're more than partners.]

Seriously, Scully.

[A slight frown touches his lips. She looks- pale.]