Bucky has been an Avenger, since Steve saved him from Hydra. Bucky is in love with Tony's oldest daughter, but he hides it. She loves him too, but thinks he don't love her.

Bucky always gives her attention and she got used to it, Ash has depression and anxiety. Both Bucky and Ash were experiments of Hydra, so they got used to each other.

While on a mission Ash needed attention, started giving Bucky 'attention or die' eyes and Bucky didn't even say no