I appreciated the last scene. It makes sense. I don't get what people want from Sam.
they all are over him for saying that he doesn't care about Dean. It hurt yeah but if he doesn't care about anyone then he doesn't care about Dean either.
Rather, I tihnk it's even more meaningful that he wants his soul back without any rational reason for it.
And Dean wants his brother back!!! So, yeah, I'm kinda pleased. XD