Sam finds a photo of you and Steve from the 1940s. You and Steve were long lost lovers… you were a nurse and he was captain america… it wasnt allowed to happen so it was a secret but you were the love of his life. After his last mission and he went into the ice you thought he had died. You continued as a nurse but then Howard Stark asked you and a few other nurses to be in a cyro chamber experiment… having losing steve you agreed you had nothing else to loose.