He had to wonder about her motivation to suddenly stop calling him that nickname that she valued so much. Was it to distance him from her or to give him the space he needed in order to cope with the new situation? He would accept James though because it was the name he had been given at his birth, one he was going to have to get used to. Also, her calling for James looked far less suspicious than an animal. It would at least work for blending in.

"I suppose so. It's what I was probably called most of the time when I was young anyway," he murmured, though it seemed odd that it came from her lips. He was a bit more used to hearing her yelling 'Bucky' at him. "You'll... call me the other name sometimes too, right?"

No, he didn't know what was going to happen, but he thought he had the strength to protect her for the most part. "I don't... want to remain if you're gone. I want to go with you," he muttered softly, his eyes downcast. "To the end of the line."