"Well..I would certainly be shocked to see that date carved into a ring but I think the dates would mean a lot more then an image. Because it's something you both would know and appreciate."

It is surprising but even after everything he has learned and now knows, he can still be caught off guard by the things Lan Wangji has done or felt in the past. It doesn't matter which one it is..they both can still do things that he doesn't expect.