Initially, she thinks it's just a bit of hesitancy- being in a strange bathroom, in a house where at least one murder has taken place, after guidance from a woman he doesn't know. When he still doesn't move, however, Luce's brow furrows.

"Dear?" Gently, she reaches over to tap him on the shoulder to get his attention.

After everything that's happened tonight... Who knows what's happening to him? She can't be too careful now.