The laugh is delayed a beat too long, he realizes too late. Out of practice.

Xue Yang mercilessly shoves aside the old jealousy that appears when Xingchen asks after the little blind girl. This is just how this righteous, naive man is.

"I'm teasing you, Daozhang!"

His tone sobers just a little then, gaze staying firmly on the other man. "I don't know how we got here." Another beat. "I only see us." True, but he hasn't bothered looking for her yet either.