Hero of War

In the heat of Summer, Dean Winchester who had been drafted into the United States army to assist in a war returns home to his boyfriend, Castiel Novak.
But not everything is happy about his unexpected arrival... He has battle wounds, one of which changes his entire life;
His right leg is gone.
Being an amputee, Dean and Castiel both have to deal with even tougher hardships in their lives, from simple tasks such as Dean moving around, to the Winchesters recently discovered PTSD (post traumatic stress disorder).
They can make it can't they? But what Dean worries, how does this affect his relationship with his beloved Castiel?