The ending we deserved

End of 15x18

He sat motionless on the cold ground of the bunker, still in shock, his head in his hands. Paying no attention to the vibrating cell phone that had been ringing beside him for several minutes. Someone needed to talk to Dean urgently, it could have been anything, but he didn't care. What could be so important if he himself had just lost?

Only later did he realize that the room was once more submerged in silence. Dean raised his head and looked around.
This can't be real, this is just a bad dream. He tried to convince himself. Then he looked at the wall on the other side of the room, which looked completely intact, as if no matter from another world had ever appeared there.
Dean touched his shoulder thoughtlessly, where he could still feel Castiel's touch and burst into tears. He sobt and prayed quietly to the angel to return to him, but his pleas seemed incomprehensible, and the hunter was well aware of it.