Lan Wangji knows that this is easier for him. He is the one who will not have to live to see Magnus die permanently, a thought so inherently horrifying that his mind wants to shy away from it instantly. He can't say anything that will make it better. When he first came here, he still occasionally thought it might be possible that he would cultivate to immortality one day. He was wrong, and he doesn't regret having been wrong. He would rather have all these earthly attachments, and feel all this love, than live forever.

"I love you," he repeats back to Magnus, heavy with his sincerity.