[He would have done it, of course. It's who he is. Steve likes to think nothing could rob him of that. He prays to never be proven wrong after seeing how Bucky, the truest and kindest hero who ever lived in his eyes, be turned into a weapon back home.
Reality settles in so now he'll never get to tell her that. Instead all he can do is look at Snow clearly upset. He can't shove it down. Maybe it was because decades ago on his world he watched a silly, sweet movie where someone kind and good never let the world embitter them and he drew inspiration from that. Maybe he grew to respect her as his superior the way he did Peggy long before he ever had romantic feelings for her. Either way, the truth comes out.]
No. [He glances down at his feet and sighs.] But, I will be. Thanks, Snow.