If Bucky had actual context for that pain he might have been able to talk Steve down faster. Might have known the right things to say, or do, to calm him down. But he was flying blind here, and grasping for what little reason he could find. He didn't have much to go on beyond his assumptions that Hydra had them and was playing some sick game.

The voice and tones aren't the only thing that rings true of Bucky. After all, it IS him. His moves are the same. His defensive reactions so similar to ones Steve would have witnessed time and again. And he is moving. Trying to keep one step away from Steve. One step ahead of the game.

He's not armed, and even if he was, what would he do against Steve? No. Words have to be his go to, and while he could be the charmer, they didn't exactly talk things out. They understood each other and they talked around things, not through them.

"No right to what? Be me? Steve, you can see me with your own eyes, or did all that serum go to your head and blind you? I'm supposed to be the one taking the stupid with me. Don't take it all back at once, pal."

Come on, Steve. Don't do this. He practically pleads his words, though all the pleading is in his eyes, not his voice, whic remains steady and light the whole way through, if a bit hoarse from the bruising to his lungs from that last punch. Is that two cracked ribs? No more spinach for Steve after this. Ever again.