"Seriously? That's got to be the worst answer to give. The worst reason - I can't depend on you because you might leave one day. You do know that using that is a fucking good way to make sure someone leaves you? Yeah, I might end up being taken away - but you gotta know I'm gonna fight it. You do know this right? I'm gonna fight tooth and nail to stay. I've got you, Sam, the little freaks and geeks that are running around the City who can't look after themselves. I can't just leave any of you." Dean was hurt, and angry, and that was usually when he said things that made other people hurt and angry.
It didn't make any sense for her to keep treating him like he was something outside her hero-ing. He was every bit of it as she was his hunting. Sure, he didn't take her hunting often, not because he thought she'd get hurt, not anymore, but because she had her own protecting gig. She couldn't always be there hunting with him, and he'd accepted that. He couldn't always be there looking after her six - and what a nice six it was - because he had hunting to do. Yet, here, now, she still didn't want to depend on him?
"I'm sorry it took you getting in trouble again." Dean sighed softly. "I always get told I'm the one who's overprotective." He sat back down, looking a little deflated. It hurt.
"When do you get new gear? And stop calling it a costume - that makes it sound like it's just something you put on. You're putting on a uniform, or some shit like that. This isn't Halloween." He looked up at her, a hint of a smile on his lips. He was still angry, still felt like he'd been kicked in the heart and head, but he wasn't running from this - he had stopped that a while back.