A small anxiety unwinds with her agreement. If she thinks it's possible, then it has to be possible. He's never met anyone with her practicality before.

Which feels like a slight to Bucky, one that hits him with sudden wave of guilt, but he tamps it down before grief can derail is focus.

"We need to find a way to stay in touch if we get separated."

Not that he's in any hurry to leave her, but the point stands.