[Bucky can't isolate himself, not really, after that briefing. It's smart to warn the hosts of the stakes to their mission, that those who fall behind get left behind, but the suddenness of the briefing has him off guard. It's too much like HYDRA to ignore, when he would be pulled into consciousness, wiped, and then briefed without a choice in the matter.
When Sam presses against his mind, Bucky's packing, though not entirely with purpose.
late day 55; after the mission briefing
When Sam presses against his mind, Bucky's packing, though not entirely with purpose.
He's here if you want him.]