"Yeah," he mutters, glancing away, his jaw working silently. "But - y'know, Gates of Hell, and all that. Besides, I left behind way too much crap I still gotta fix." Falling angels, for one. Unless that one was Cas's fault. Either way, he can't leave Dean to shoulder that all on his own.

"I'll be fine," he insists wearily, fully aware that he currently looks the furthest thing from it. "Er, I will be, eventually. I'll get over it." Granted, he's not all the way certain of that, but if he's going to actually get anything figured out around here, he'll need to.