Y/n had been in Hydra for a long time. They had given her blue flame/fire powers and called her “The Winter Angel”. While being there, she fell in love with Bucky AKA The Winter Soldier. But one day, Bucky didn’t get back from his mission. Y/n was sure he was dead. But she was wrong. The Avengers had found him and made him himself again. But that made him forget Y/n. They planned to shut down the facility where Bucky was kept and ended up finding Y/n. Bucky realized who she was, and how he had accidentally left her behind.