Bucky didn't shake off her hand the way he would have most. There weren't a lot of people who could really begin to understand but he thought Wanda would come close. They both knew what it was like to be turned into something else. To be a tool for Hydra, even if they came to be that way through very different means.
They both knew the burden that came from causing innocent people to die. Even if, that too, was because of very different actions.
"They gave Steve's shield to someone else. They gave him his name. And he's...he's fuckin' horrible. He doesn't deserve it."