I find it really interesting how Dean's reactions to Cas' death have progressed over the years as he's gotten to know him more and they've gotten closer. Whether it's the writing or the acting or both, I think it's really neat that they haven't just played it all on one note. Plus, it's another way of lampshading how Dean's relationship with Cas is different to Sam's. Sam is always upset about Cas dying but his grief is never highlighted in the same way as Dean's.
You mean…. the evolution of Destiel? :D I love tagging stuff for that, I totally agree.
I mean it’s gone from oh, I kinda liked him to shit he meant a lot to me to OMG CAS NEARLY DIED FUCK YOU MOM to falling to his knees on the floor in shock and pain while the devils baby god is lighting up the house behind him and he’s totally ignoring it cos he is just focused on having just lost Cas and he can’t cope.
I feel like the writers are kinda mocking us as we all go “CAAAAS!” but I love it ;)