Oh, he heard it, he did. But he didn't bring attention to it. This was Castiel. He had chosen Castiel, and he would follow him wherever his chosen father lead him. Part of him hoping deep down that everything would be okay.

"Me too, just a few hours ago. I was worried about you..." He admitted, Castiel had been off looking for a way to stop Billy's plan, but he had already spoken to Dean. And part of him worries that Castiel may not be from the same time... but if he is, he hopes it's before Castiel found out.

He doesn't try to move away from Castiel's lead, moving with the ease of someone very comfortable with the angel leading him by the shoulder. "I saw Dean, he looks a lot younger, and he doesn't know me." A touch of sad in his voice before he smiles Castiel's way. "And a woman named Jo, she seems to know Sam, Dean and you too." He was happy about Jo. Even if she didn't know him, she had an air about her like Mary did.

Nope. He's not letting himself think about Mary. This is not the time for a parade of pain.