I think yongwon is possibly In a time loop. And the trigger could be Hohyun dying. That’s how he knows what’s going to happen, and why he knows Hohyun despite them never have meeting before.
Also other things like when he says. “If he dies we start over”
also my theory is that ml got mad at mc bcs of hes becoming more aware that this is some sort of “replay” in the simulation n keep doing new/unexpected variables like killing a zombie on his own. So ml couldnt figure out whats the next outcomes gonna be thats y he’s frustrated
AAAAA CUTIES