>>101154490>so if Kyle no longer reacted to Cartman, what purpose would Cartman have for keeping him alive?
Cartman isn't really the type to just kill for no reason. He desperately needs the opposing force Kyle gives him, so picture this instead:
since being an asshole to Kyle no longer works to get a reaction, Cartman tries to be nice instead. Extremely nice, to the point of it being saccharine. And it works like a charm, Kyle is absolutely freaked out, so much so that HE starts being an asshole to Cartman, and everyone reprimands him for it, the adults I mean.
So this ends with Kyle forcing himself to not give a reaction anymore. Which means Cartman isn't getting what he wants once again, and as he loses his patience he starts to be a dick again, to which kyle responds with a sigh of relief.
Until Cartman starts REALLY being a huge dick, and Kyle can't force himself not to react. And thus status quo is reached again.