"I don't think that there's anything or anyone out there that could convince me otherwise," Sam informed her, "so yeah. No matter what." He worried about her sometimes. Ruby always seemed to have this air of uncertainty about her. Like she didn't actually believe that he'd want to stay with her through all this. That maybe what they had wasn't even real. He didn't know exactly what it was, but Sam knew what love was. He knew it because it was a hard thing for him to grasp onto. When he did, Sam found himself screwed at the letting go part. Sam didn't think he could.
"You and Dean are all that I have, Ruby," Sam told her, focusing on the road and, admittedly, the hand on his leg. He bit his lip and tried not to look down. "Of course I'll be there for you. Now stop talking like that, all right? You don't have anything to worry about." He spared her a quick glance. "You're a part of me now. And not just 'cause I'm drinking your blood either. Remember that and you should be fine."