What Dean needed right then was a large cup of coffee. Or a beer. Or any alcohol of sorts.
They day had been a long one, with a lot of running and witches - Dean hated witches! - and the blond was just about ready to fall asleep standing right where he was.
What was worse was that one of the witches, whilst fighting with Dean, had commented on his "rather obvious feelings for the angel", who was across the warehouse from where he was.
The elder Winchester was shocked enough by that that he hadn't noticed the witch's fist pulled back, and before he had realised, his nose was broken.
After that, he had simply shot her in the head, helping Sam and Cas to each fight their own witches.
It only took a short time after that to take the few witches down - three on three was fairly easy, and, after Dean's initial take-down, 3 on 2 was even easier.
Unfortunately, Castiel's grace was diminishing, and so he could't help heal the blond's broken nose. But he was right there when Sam set his brother's nose, holding Dean's hand.
Now that Dean thought about it, he had been kind of whimpy, when having his nose set - it wasn't as though he hadn't broken it before, but this was the first time it had happened when Cas was around, and and he was therefore, unable to explain how the life of the Michael vessel could be intolerant of pain, so he just squeezed the angel's hand when it gets slightly too painfull.