We're Okay (слэш)

Bucky scraped all of his courage together to let Steve go once, and he knows without a shadow of a doubt that he’ll never be able to do it again. So, why is Steve back here?
Or, Steve is right back on the platform after the ten seconds are up, all the stones once more in their rightful place, because traveling seventy years into the past didn't actually give him what he needed.