He blinks at Lan Xichen slowly. “But this is probably new, though, right? Like, this probably wasn’t the ceremony back, let’s say, some sixteen years ago, right?”
“No,” Lan Xichen tells him calmly. If Wei Wuxian wasn’t too busy dealing with his entire worldview collapsing in front of him, he might have noticed the amused curl of Lan Xichen’s lips. “It’s been a Lan Sect tradition for centuries.”
“And- And…every Lan Sect disciple knows about it?” Wei Wuxian asks, even though he already knows the answer. “And if…it was done by a Lan Sect disciple-”
“You can say Wangji,” Lan Xichen says kindly.
Wei Wuxian can feel his cheeks heat. “If… If Lan Zhan did that to someone…”
“You can say it was you,” Lan Xichen interjects again.
“If Lan Zhan did that to me,” Wei Wuxian says in a rush, “it means. It means what I think it means, right?”
Wei Wuxian swallows. “So when- When Lan Zhan says that he’s loved me for a long time, he really means a long time, huh?” His chest feels full, too full. He wishes he had known earlier, wishes he hadn’t made Lan Wangji wait for him for so long. “Xiongzhang, I have to-”
Lan Xichen smiles at him, gentle. “I saw him headed towards the Library Pavilion.”
Wei Wuxian beams at him, and dashes off.