Then it would fair for Wei Wuxian to allow to make rules for himself. Lan Wangji by his own nature is normally obedient...until his unbridled passion breaks through, and his self-restraint is called into question to control himself and his wild side. His self-restraint is starting to slowly crumble everytime Wei Wuxian cries and feels too much.

A fire lights up in his heart when this one calls him his soulmate. It's more than he can ask for. What he needs from him, a confirmation that they share a bond, and that Wei Wuxian wanted him, what he wanted to give, and he claim it. "Then don't think. Listen to what your heart says. It makes more sense. It's that heart that I want to follow."

He then realized they're in a restaurant, in a public place, so he steps to give a little distance. He has some time for him. "Wei Ying, a part of me belong to you. I want you to see it. I want to spend time with you. If you have a place where Wei Ying is Wei Ying for this soulmate, and it's for his eyes only, then I'll go with you for the limited time we can have." They have to figure how to make this work somehow to help lower the tension and stress, and forget their obligations if only temporarily. Keeping him company and feel less lonely is a start, considering he did the same for him during a crisis.