Destiel was so powerful by season 9 they honestly didn’t have any other choice than to force Dean to send Castiel away from both him and the bunker.
I mean, a human Cas in the bunker with Dean as his guide would have been so intimate. He’d have learned quickly from Dean how to feed his hungers, whether it was with food, a fight, or a fuck.
Cas safe and human and finally staying put. All of a sudden always within arms reach & dressed in Dean’s clothes. There’s no way they wouldn’t have gotten to know each other in the biblical sense.









