Jimmy had been awake, he felt, he heard, he symbolized.
he knew Castiel was distressed when they walked into that storage building, he knew castiel has plans of something big.
he didn't remember much after castiel stopped screaming in pain, but when he awoke to the voice of someone calling out castiel's name, he instantly knew it was Dean Winchester.
jimmy was still a little out of it but he felt his brain tell me to hug this Dean, it told him he cared about this man immensely. that he should protect him. jimmy didn't know why, but this feeling he was having is what caused him to go with the Winchesters.

the more jimmy looked at Dean the more he remembered about castiel being inside of him. about the forbidden love he felt for this man, the blind faith he had in him...how he desperately needed to this mortal to tell him what to do.
the more jimmy mulled over these feelings that castiel left behind, the more he noticed...dean.
the way that dean looked at him and the sadness that flooded his features when jimmy spoke. it amused jimmy that castiel didn't pick up on these things...that he couldnt tell the feelings were mutual.
when jimmy got even remotely close to dean, sparks flew, but they weren't his sparks. it was more like when a used firework is still hot after it goes off. how electrical cords can still shock once unplugged.
jimmy could see right through deans bravo mask...that probably was a side effect from castiel, jimmy thought.

sam left jimmy and dean alone and that's when jimmy cornered this man.
"i know how you feel about castiel..." deans face was a jumble of confusion, fear, and sadness. "...and castiel feels the same way."
before dean could ask why? or how does he know? or what the fuck are you talking about? jimmy continued "trust me."

jimmy lie there on the dirty concrete floor, bleeding to death. he watched castiel roam around in his daughter's body. he knew how much pain that caused her, how confusingly annoying it was not to control your body.
jimmy didn't want that for her.
"you take me castiel. you take me."
castiel left the flesh and bone of Claire Novak and entered the all too familiar one of his true vessel.
castiel watched dean as he walked past, castiel wouldn't.. couldn't look at dean now.
"i don't serve man..and i don't serve you."
jimmy could hear castiels words, could feel his own lips moving, and he tried his best to stop them. he could see the emotions flood deans face, see the hurt in his eyes, and he yelled at castiel the loudest hes ever been in his entire life.
he tried to tell this angel that he shouldn't...that he can't walk away from dean.. that jimmy knows how he feels..how they both feel.
to no avail, jimmy felt himself walk away from the one man who could change castiel.