I am looking for a story I read a long while back. Hopefully this will sound familiar to someone.

Dean is attacked in his dreams.
His soul breaks up into frgaments that Castiel has to collect and put back together. Fragments include: His protectiveness of Sam, his trust in Castiel, his sexual feelings towards Castiel.
I would assume with the third example being what it is, that this is a Dean/Cas story, but I really don't remember.

Does this sound at all familiar? I remember so little about it.