three white horses (слэш)

Steve, it's not your fault, Sam had tried to say, before Steve cut him off, and Steve doesn't think that's untrue so much as it's irrelevant; fault's got nothing to do with it. It's just—wrong. It's wrong. Steve couldn't wrap his head around it the first time, how wrong it was. Steve should have gone first. Was supposed to. Bucky could have carried on without Steve, he knows, but Steve without Bucky is a zero sum. There should never be a world that Steve is in and Bucky isn't.