The most heartbreakingly sinister thing Supernatural ever did was have Cas believe there could be a happy life for Dean with him gone. That Dean could just move on. That Dean could just be happy without Cas in his life. That Dean could ever get over losing his angel.
DEAN WOULD NEVER GET OVER CAS. EVER.
The man carried Cas' bloody trenchcoat from car to car because a part of him always believed that cas'd come back.
The man stayed A YEAR in Purgatory (even though the way out was RIGHT THERE!!) because he had to find Cas and had to bring him home.
He literally killed himself when he believed Cas was gone for good. And he would've stayed dead if Billie didn't have other plans for him.
The man decided he actually wanted to live again ONLY AFTER the gay angel returned to him.
Dean would never EVER get over Cas. But Cas never realized that. So he killed himself, unknowingly killing Dean in the proces...
