Ohhhh that is really excellent, made me cry because of what Dean is going through just so that Sammy has him there and doesn't have to suffer alone - assuming he is possessed, which of course he might not be, but then there's always a chance that some part of him isn't evil and that's never going to come out *without* Dean.

I'd guess that mom and Jessica are around because the YED killed them so their spirits are closely connected to Sam and what is going on in the world now, so Dean isn't going crazy at all.

I liked the bit about making weapons out of the hangers. That is SO Dean *g* And taunting notSam with all the irrelevant chatter about food, which at the same time is meant to comfort Sammy.

I'm not quite sure I get the title reference though... or is that the title of the song whose lyrics you quote?