Wei Wuxian reaches around for that hand that got injured and brings it up to his lips, kissing it gently. It won't fix it but he feels responsible for causing that anger and the sequential injury from it.

"We've hurt each other but we will also be able to heal each other." Because only Lan Wangji is able to make his heart feel complete. And no matter what happens or what arguments they have, they will always find a way to get past it and return to the way they should be.

Those ears finally perk back up as he lowers that injured hand into his lap. "I love you, Lan Zhan. That will never change."

He leans up and kisses his cheek as lightly as he had just kissed the hand.