Their gaze drops to the one struggling, hands going higher in a 'stop' motion. "Hey you, you don't--please wait, don't do that, you'll hurt yourself more," they tell maybe-Chara urgently, taking one more step closer.

Looking up again, to Chara-and-Frisk (probably-mostly-Chara?), face going back to blank with an edge of slightly pleading.

"You don't need to, you don't. They're not gonna kill you again." They're acting on pure hope here, refusing to let it show on their face at all. They are calm as they can manage. "And--if you kill them then it...it'll get worse. More fighting and killing later, and that's not--you don't need to do that, make a cycle, we talked before you came back, and they don't want that either."