Bran was indifferent to James' dislike of the situation, keeping his eyes trained on the men for even the slightest of movements. One move forward and they'd lose a finger, if he was feeling generous; more if he wasn't. He didn't really expect them to attack, though, and once she'd collected the food and bucket he waited for her to leave first before backing away.
"Merci," he told them, not needing any help for that particular word. It wasn't quite genuine, but it wasn't cruel either - it was rather flat, more of a customary thing.
Once they left the building, he looked at Lotte before nodding and once again averting his gaze. "Food and water," he replied, gesturing towards James. "It's not a feast, but it'll keep us alive for a little while longer." He realized he was being rather blunt, but he didn't care to try to be otherwise.