Dean was at first so proud of his brother for getting over this. He had thought when Sam saw his eyes he was going to shoot on sight, or that cas was going to stab him. But they didn't and Dean was grateful.
But this was the fourteenth time now.
The fourteenth time dean had got caught in a demons' trap.
And Castiel wasn't answering his prayers purposefully.
When he comes back and there's holy oil rings everywhere, Dean will remember not to step in the demons' trap so he can light them.