At the mention of Wei Wuxian, Lan Wangji's jaw gives an almost imperceptible twitch. He watches the displays of affection with a continued glare, though to one who could read it, there's much more than simple anger beneath the surface.

It's the kiss that finally has him snapping again.

"Impudence."

There was likely no question that he would walk out and leave them to dress themselves without being observed, but as if to make certain it's clear, Lan Wangji takes a step into the room and closes the door behind him without moving his gaze from the two.