Gon? Gon does not argue. He certainly pauses, perhaps considering protest...but between the ice, between what Sans couldn't do, they should definitely regroup at the Carnival at the least. So he nods, and-

"Mng- AUUH-!! PERIDOT!!"

DAMMIT STOP FLYING AWAY- (aaaaand she's gone.)

"...I, the man Gongenzaka...suppose it is the three of us, then..."

Though, one off on their own, especially... "....One hopes she will be able to clear her head before encountering anything, given her frustrated state..."

...especially with a laser-guided focus...