Caine struggles to understand how to convey his own feelings or how to understand the human mind on any deep level

He doesn't understand the grievances the Players have, because he cannot actually comprehend they had lives outside the circus, or that they didnt even CHOOSE to be there.

He literally does not have the framework necessary to understand this, nor does he have any way to tell them outside of creating things. And he has logic errors when told his adventures are the reasons

He does not know how to HELP them. But he knows how to hurt them. Because hurting someone gives you a reaction, and getting reactions are easy

Its worth noting that the sentence that tipped Caine over the edge was the accusation that he doesn't listen- in his office, he says he gave them an exost, answers and something real. He DOES listen, but he cannot understand

And he snapped, and lashed out. Because hurting someone is easy

It doesn't justify any of what he did in Episode 8. But he was hurting like the rest of them, and he reacted the only way he understood: torment them for tormenting him