"You sneaking out got us here. I did no such thing." He does remember Wei Ying under the moonlight, brazen, carefree. He was such the embodiment of liberty, so young, so proud. Fighting him had been electrifying, had haunted him all night and then some. He was the antithesis of everything Lan Wangji had stood for and had thought he'd wanted. And yet, his heart was claimed the moment they crossed swords.

He takes Wei Ying's hand in his own, and starts to move with him, so they can go back up. The party still seems to be going on downstairs, people halfway to drunk, mingling, having a good time. He isn't worried about them, and he is sure they will all forgive him if he doesn't spend the time to say goodbye to all of them individually. He will send out cards some other time.

For the rest of the night, and the rest of his life, he is all Wei Ying's.