Phase Change (слэш)

The man who used to be both Bucky Barnes and the Winter Soldier but now is neither has to figure out who he is and what he wants, with a little prodding from Tony along the way.
Based off a couple of prompts: one from ImagineTonyandBucky "I love Tony x Winter Soldier, so pretty please, can one of you write something with Bucky in WS mode? Idk, maybe WS who doesn't understand concept of feelings, but he's aware that he has them and he doesn't know what to do with them, so he decides to ask Tony, who is not only genius but also the object of those feelings, so he's perfect person to ask in Soldiers reasoning...
and
Based around the Winter Soldier and his reactions/thoughts etc. And it is the asset. Barnes did die. Hydra killed him and all that's left are spotty memories of a man that's not him, and the monster Hydra created. Hydra falls. And then somewhere along the way, he falls in love.