Lan Wangji tries to ignore the fact that Wei Wuxian was apparently still talking about him, enough to mention him in letters to others. He doesn't wish to think of him. Ideally, he wishes others would not even speak of him in his presence. The less he thinks of Wei Wuxian, the sooner his focus will return to cultivation as it should.

When the two hold hands, Lan Wangji's gaze immediately focuses in on the action.

"Let go."

That is all he says before he turns around and slides the door open again. He steps out and starts to make his way back towards the main area. Jiang Cheng and Nie Huaisang should know better than to not follow.