Once the right mate is found. Yes. Zishu understands that intimately. He's told Kexing many times that he'd be content even if everyone else vanished, leaving just the two of them. His Lao Wen is all he needs.

The command to keep her safe wipes all trace of emotion - other than seriousness - from his face. "I live to keep her safe. She is my reason for living." Just as he is Kexing's reason to live.

"Everything I do is for her comfort." But. He inclines his head. "Thank you for your concern." His Lao Wen deserves the affection and protection of everyone. It's reassuring to hear such things from someone who'd been intimate with Kexing.