I don’t think people recognize how important that line is. In this episode, the boys are living in an alternate universe - Dean can beat Sam at Rock Paper Scissors, Ellen is married to Bobby, Ellen and Jo are alive and well, and the list goes on. What Balthazar says here, about the angel being in love with Dean, isn’t meant to be a joke or a jab at Dean, but rather a statement that Dean shouldn’t be calling him when the other angel would do anything for him. In this universe, with one slightly altered event, Dean and Castiel are in fact in love, just as they should be. I firmly believe that they are truly together in this slightly altered universe and that they are truly soul mates.
I once saw a post about AUs and how they are so amazing to read because two people, no matter what situation they are in or what universe they are part of, they will still meet and fall in love. These two characters, whether human or not, on earth or elsewhere, or simple people or hunters, will always find their way back to each other no matter the story and what gets thrown at them. This episode reminds me of that: Dean and Castiel are soul mates to the point that no matter the universe or the small details that occur, they will always fall in love.
(Quelle: spnfans, via justdestiel)