Oh, very, very nice. I love the sequence of grief and 'almost' that plays throughout this story.

Dean spends hours looking at his father's journal. Not reading, just looking; running his fingers over spattered blood and yellowed pages.
I love this detail, this tactile remembering and refusing to let go.

squeezes him so tight that Dean can’t even pull in enough air to mock him.
He begs Dean not to die too, not to kill himself and leave him alone.
Dean stays still and silent until Sam starts to sob.
Loved this completely, and the earlier part where Sam can't be persuaded that Dean doesn't want to die.

And loved the conclusion as well. Because sometime it has to happen, and when it does it you know it's going to be awfully big. :(