Bucky is in a relationship with Steve. Steve is confused about things and starts to ignore Bucky as his lover. Bucky has mental issues which causes him trauma. Bucky loses it after Steve gets mad and hits him. He runs, not knowing where, just runs. He finds Zemo, who offered to help with a price. He gave his memories of his past back to Bucky and that makes everything worse. He decides to return to Steve but finds out about an affair with Tony. Steve starts getting abusive and Bucky runs off again. Sam finds him and takes him in. They bond a lot. After a mission which left Bucky with a bad injury, Sam realizes what he feels for Bucky. (Sam is also getting crowned Captain America and Steve didn't go back in time and go old, he stayed but still retired) (Abusive Steve, but he gets better at the end :'D im sorry no hate pls-)