Dean died in the car accident you had. Or atleast he's about to. Although he keeps fighting death. He's still here. In that hospital.

Sam and you have been desperately trying to get him back, Sam even talked to him trough a ouija board. It was only a matter of time when other death would gez him or he'd end up as a vindictive soul. It was only his choice. But he keeps avoiding the literal death talking to him to give you and Sam more time, since he knew, or atleast hoped you'd handle it somehow.

John, their father was in that hospital too, dealing with his own wounds from another rough hunt and trying to recover.

Currently you were sat on Dean's bed next to him, looking at his unconcious body with a few bruises on his face. Dean's soul was standing against the wall, watching you. You couldn't see or hear him and he knew that but he still just wanted to stay.

He could still see your face and listen to your beautiful voice after all when you talked to his lifeless body.