This is it. If he goes now he can't turn back. But then Steve always knew that. From the second this started he was walking away. It isn't just a choice. It's an escape. And he needs to make it. He runs over to help Bucky up. T'Challa is waiting outside. He helps them to the jet.
"Thanks" Steve manages. "Call Pepper. Give her this location once we're gone. Please."
"Is your...is Stark..."
"He's alive." confirms Steve.
"I am glad to hear it." T'Challa says, half polite interest and half challenge.
"Me too." Bucky beats Steve to the acknowledgment and slumps into a seat.