Thanos snapped his fingers and billions of people turned to dust. One of those billion was your one-in-a-million, Bucky Barnes. Grieving and seemingly alone, Y/N finds comfort in Steve Rogers. As their relationship progresses, lines become blurred and hope is lost. Before this, the idea of anyone other than Bucky being the one made you want to puke. Now? With Steve? That idea seems far from impossible. (Set in the 5 years between Infinity War and Endgame!!)