The atmosphere that was captured in the episode was really good, made me invested and made me care.
This is a long running problem of supernatural since S7- Dean's character regression and development, sometimes it happens during the entire season and sometimes it happens per episode. It's simply annoying at times how clingy and unable to look at other's views he is. Also the message of toxic family love this series gives out, sure it is somewhat self-aware but in the end it always makes Dean's emotions as priority and makes everything work out in his favor, like Sam, who now wouldn't leave and thinks the same way, the "we always came back to eachother".