"It's not forever," Wei Wuxian says gently, understanding exactly what that hardness means "it doesn't even have to be for very long. Just... long enough."

They can still write, maybe even visit, he has no intention of tearing the two of them apart - he doesn't want to see that look in A-Yuan's eyes that he saw in his husband's.

"And I definitely wouldn't make you do that, A-Ling." he adds, standing so he can leave the room and give them some privacy. He pauses just before he leaves, though, and looks back.

"Thank you. Not just for agreeing to this but also... I know you weren't looking for him but you found him, and you brought him back, and that..." his voice catches as he trails off, unable to find the right words "One day, when you have children of your own and you can really, truly understand what you've given to me, I'll thank you again, and you'll know what it means."

He nods, once, and walks out of the room.