Mending What Was Broken

After the civil war between the Avengers, Tony is left alone and slowly being eaten from the inside with hate. When Steve suddenly turns up with a few others and none other than James 'Bucky' Barnes, Tony is dragged back into the world of the Avengers to help, very much against his will. SPOILERS. DO NOT READ IF YOU HAVEN'T SEEN CIVIL WAR AND DON'T WANT IT RUINED.