I think people forget the biggest difference in how Jensen acts toward Supernatural compared to Jared is that Jared got a complete story arc for his character, as shitty as that ending may have been for him. Sam retired from the hunter life, had a wife and a family, and grew old in peace and relative happiness. Dean died with his storyline unfinished. 15x18 clearly set him up to respond to Castiel's confession, and he wasn't able to. Dean dies on a hunt young, miserable, and alone - exactly how he thought he'd go out when he was 26. That's not a satisfying conclusion; it's a slap in the face. And Jensen knows that. That's why he can't let Supernatural go; it's not finished for him yet.
"supernatural is so embarrassing," i say, opening my 27th tab of destiel hurt/comfort enemies to lovers coffee shop au. "15 year-long hate crime." binge-watches season 13. "shittest tv show ever aired." gets a hunter tattoo.
Supernatural is such a silly little show. Team Free Will boiled down to a flaming ass Michael Sword, an angel with a crack in his chassis, and an abomination with demon blood & unlimited WiFi