Ah. His expression softens instantly at the thought of leaving any of his people behind, especially anyone from home. He'd already go back for any of those people. And while he doesn't know the other names his other self is throwing around, he has faith that anyone he would make that kind of oath to is worth keeping such an oath for. "Then we'll find a way back to them," he says, straightening. "I'll swear to that too."

It probably is stupid to swear such a thing, but at least now they're both idiots.

He pauses, slightly, at the mention of a shapeshifter. And blinks at himself, temporarily derailed. "I - er. No. What?"