Seeing as his two best friends vouched for Kylo's change and he helped Rey heal the wounds he left behind that night in the woods instead of just letting him die, Finn couldn't entirely be hostile toward the other man. Finn's arrival at the hotel felt like a vivid dream. One moment passing out from lightsaber wounds left by the man and the other moment being healed by that same man had been some fever dream to him. Had he not been half unconscious at the time, Finn likely would have tried to attack the man with the last of his strength.
A quirk of his head and Finn nodded, picking up the shirt with the dead rabbit inside. "At least someone is trying to do something with these things. Blood oozed through the shirt leaving half of it wet to the touch. Finn made a face as he knotted the bottom and the sleeves together carefully to form a bag.
"Your uncle?" He questioned before realizing who he was talking about. "Oh, right. Rey had said the same thing. She wanted to introduce me to him-" he paused. "Eventually. I'm not sure I'm- You know..." Knowing that he would come face to face with a legend was scary. The First Order had told stories in the bunkers of Luke, Leia and Han, and as when stories are told by the opposing side, they made them all sound fearsome. Luke, especially. Finn did not think he was worthy of training. Sure, he tried it out just now, because it would have been cool, but they literally were a long line of powerful Force users. He barely had memories of before the First Order took him; before he was assigned a number rather than a name.
"Uh, honestly... Poe told me you switched sides and-" Finn realized Rey had mentioned that Kylo killed Snoke. The overwhelming nature of all the information at once had been lost in Finn just trying to deal with Rey calling Hux her boyfriend and Poe saying he married the General.
He blinked. "Rey said in the future, you kill Snoke to save her life." Finn wasn't about to tell him everything she said. Also, Kylo's shirtlessness still was off-putting.