At some point in Infinity Wars I expect there'll be a scene that'll go something similar to the following;
Bucky: I love you, Steve.
Virgin America: Don't you do that, don't say your goodbyes. Not yet, do you understand me?
Bucky: I'm so scared.
Virgin America: T'Chaka dying, Buck, was the best thing that ever happened to me... it brought me back to you, and I'm thankful for that, Buck. I'm thankful. You must do me this honor. Promise me you'll survive. That you won't give up, no matter what happens, no matter how hopeless. Promise me now, Buck, and never let go of that promise.
Bucky: I promise.
Virgin America: Never let go.
Bucky: I'll never let go, Steve. I'll never let go. I promise.
Bucky: Steve?
Bucky: Steve?
Bucky: Come back.
Bucky: I'll never let go.
Bucky: I promise.
End scene.
Bucky lives through default. He's Rose to Virgin America's Jack.