Zishu was everything to him. If not for him then he would've probably faltered by now. Possibly even gone a little insane. His mind would've still been in that fragile state. However, he had this man by his side. Alive and well.

The moment that arm slips around his neck he slips fully into his lap. If anything ever happened to this man then he would tear apart the world. Raze it to the ground and make every last one of them pay, then follow him into death.

"I am always with you, A-Xu."

It was just a matter of them getting up now.