He wants to retire to the room more then anything. He wants to be able to envelope himself in Lan Wangji's love in the privacy of their home in the hotel. But there are still things they need to do and so he has to stay focused.

"First we need to release a lantern and make our vows." A wish and a promise to the heavens. He takes his hand and leads him over to where the lanterns are sitting in wait.

"Let's take it to a quiet part of the garden." That way they can make their promises in private.