FP was more than used to Fred refusing to leave when FP told him too. It was Fred's duty to stick with his Serpent but Fred was also a father. If Red needed his dad, FP wanted Fred to go to him. He knew that Red wanted to be home with Jughead. He easily saw the bond those two boys had created over their short lives but Fred was right to keep Archie away. The last thing that they needed was for another kid to get sick.
Connor walked into Jughead's room and saw that the boy was fast asleep. He put the backpack he had brought with him down beside him, taking out the thermometer and stethoscope. First he waved the thermometer over Jughead's forehead until it beeped and it showed the reading. Connor frowned. "101F. it's higher than I'd like it to be but not high enough that warrants a trip to the hospital. It gets any higher though, I need to know about it." He glanced over to the men standing in the room and his eyes focuses on the knife Fred is twisting against his finger. Connor is slightly alarmed but he doesn't let it show. He won't show signs of weakness if that's what they're looking for but he does angle himself that he can keep a better watch on the men just in case.
Connor knew that Jughead was not likely going to enjoy what was coming but he needed access to the boys chest and back. He wanted to listen to his lungs and heart so he pulled the covers down causing the colder air to hit the boy.