Dean reached over, patting Sam once on the knee, then just focused on driving. He wasn't sure how to make anything feel right again, and he doubted it would be okay until they'd really processed this latest loss. It wasn't like they ever really got the chance to take anything in and really get over it, though.
Hearing Sam's words, Dean glanced over, then settled both hands on the wheel, curling his fingers tightly around it as he clenched his jaw, head tilting up a bit. He would go as far as he had to, if it meant protecting Sam, he'd told Henry that much, and he knew it was his own fault Henry was dead, even if their grandfather knew the risks.
"It used to scare me too," he admitted, looking over at Sam. He didn't know what to say, other than that, but he couldn't just stay quiet. "If Henry hadn't been up for things going the way we planned, I would've tried to steer things a different way, but Sammy... if there's a chance I can save you, I'll take it. No matter the cost."