The idea of leaving Bucky alone strikes something uncomfortable in him. It's-- strange to think that they haven't been apart for a very long time now, whether they've bickered or distrusted each other or fallen into bed together, it doesn't really matter. Perhaps that's not healthy. But the idea of leaving Bucky behind-- here...

Well, it just seems like a very bad idea, all things considered. He isn't certain what he'd come back to.

"We could all go, if Oeznik is inclined..." It means uprooting Steve and he's not certain that's really best for the cat, but they also can't quite leave him behind in an empty house. Maybe they could board him for the duration...

Or maybe Zemo should let Bucky stay behind, but there's also the fact that the man may not care enough to take care of himself or the cat in their absence.

The question has him pausing, humming thoughtfully. "We will have to, won't we? Though I still can't quite escape the nagging feeling that it will be at least the beginning of the end of whatever peace we have found."

Involving more magic, or letting people know they are traveling together. "We will see if it lasts, I suppose."