If he knew what she was thinking, about the use of magic, about Poe running into Kylo in the park, he might have lost his temper entirely. As though those two things were remotely similar to the choice Rey wanted to make.

"I would rather you don't do it! I don't care if he's lost, I don't care if he has no guidance, and..." For a second Poe loses steam. He looks over at Leia, trying to make his expression cold, trying to say what needs to be said even if it means going against her. "I don't care if he's your son."

He has to turn away from them both. He can't tell if it's because he doesn't want them to see his face or he can't stand to look at theirs. BB-8 whistles concern, and Poe can't even make himself smile at the little droid.

"He's a murderer. He slaughtered a man in cold blood before ordering the execution of dozens of villagers. He's...." A torturer. Poe still can't say it. He grits his teeth and hisses out the words. "He's a monster. You want to learn from a monster. How can a monster do anything but teach you how to be one yourself?"

He tries to breathe. Tries to be calm.

There's shit-all to be calm about, right now. "Personally, I value the lives lost at Tuanul a hell of a lot more than I value his."