Finn did see the scars on his back. There wasn't anything he could say or do about that, though, and just left Poe to his own devices.

Once he was in the kitchen, Finn stopped to take a deep breath, hardly believing what was happening. Poe Dameron was not only alive but in his home. It was a thought he'd been trying to get used to ever since they found him but it was still a little like a dream. Impossible by all rights.

The scars, though. What the hell had happened to him? Capture, surely. Right?

So Finn took his time retrieving a bag, reappearing a few moments later at Poe's door. "So, what's the verdict?"