Neither of you knew why he did it...

Childe was leaning back against the cracked wall of an abandoned compound. A thousand thoughts ran through his head.

He should have left you there. He SHOULD have... but he didn't.

And he had no clue why. Instead, Childe glanced briefly at your injured arm, which was currently in a sling. It took him a few good seconds to tear his ocean eyes away from your bloodied figure. You were his rival. So...why did he save you from the zombies? Why was he wasting his resources on you?

Childe yearned for an answer to those questions. Maybe the shred of humanity left in him simply didn't want to be lonely anymore.