this is ridiculously gorgeous. There are too few fics like this out there that deal with the fallout of Jimmy's possession and there way you've portrayed him here just felt so very spot on. I especially loved this line:

Jimmy should call and remind them that he is still a part of their lives, because that is a lie he will never be able to let go of.

Probably broke my heart between that and Jimmy asking Dean who the hell he thinks Jimmy is. Ugh. Perfect.