"Hello brother." He didn't turn, didn't need to, if Lucifer wanted to stab him in the back, so be it. His tone was weary, and he didn't take his eyes off the landscape before him. One good thing about being on watch, he could see for miles without needing binoculars or something similar. No telltale glint of sunlight on lenses would give away his position.
"Yes. I am mad at you." It didn't really cover the depth of the fury he felt toward his brother. But that was nothing compared to the rage he was directing inward at himself. Or the damn Winchesters, who would fight tooth and nail to protect their own brother, but thought nothing about asking him to turn on his.
At his sides, his hands curled into fists at the mere thought of those two hypocrites, and a hint of electricity crackled in the air before he regained control of himself.
"But you're alive, I'm glad you found time to let me know."