Daniel had been a bit busy during Sam's short stay, so hadn't entirely been aware of the fact she had even been there. Sure, he'd heard the tail end of a few conversations involving her, but he hadn't realized she'd been there. Which would probably make him feel terrible for having missed the opportunity to talk with her.

Hearing the question, he let his head fall to the desk. One word summed it up quite well, really. "Vala."