here to the end of the line
I bring you the Gallery of Captain Facepalm.
That last one’s just in there because he looks like he would be facepalming if he could.
This trapped animal look was awful. That’s not the Winter Soldier. That’s the scared little kid he turns into when he’s confused and in pain. Because the Winter Soldier is a machine. But when the scrap of Bucky that’s still in there starts banging around, the machine goes fetal and he just reverts to this child like thing.
And he knows there’s no help coming. There’s no extraction or exfil plan for the Winter Soldier. He gets himself out or he goes down with the ship. And he’s failed at his mission, so he’s probably expecting Steve to kill him here. He can’t understand why Steve saves him. He’s scared and he’s confused and he’s angry and he doesn’t like feeling any of these things because he doesn’t understand them at all and he liked it better when he didn’t have to feel them.