He's getting closer. Zephyr had thought once that probably X didn't have much of a self-preservation instinct. Now he knows he was wrong: X has none at all. Zephyr moves away from him, which has the side-effect of cutting short his examination of the window.

"Thought it was pretty clear, actually," Zephyr says tightly, eying X warily. "You're not a coward. I'm the one making the decision here. Could you move?" If Zephyr isn't careful, he's going to wind up backed into a corner.