The nervousness was adoreable but taking up time, and she was oddly wanting to get him back to Faith so as not to arouse suspicion, and maybe she really did need to spend time with Castiel, try to salvage more. Try to save it, Sam had pretty much made her promise to.
"Place is fine Sam, only ones that'll find us here are vampires and whoever they're planning to chow down on and well, we can fix that pretty easily if they try anything."
He was worried about more than their surroundings and privacy though, of course he was, Terrified that he'd made the wrong choice, she knew how he worked, he wanted to run, wanted to forget this whole thing but he couldn't bring himself to because a part of him wanted it, a part of him needed to be strong.
"Its gonna be okay. Its just us, you're safe and this is what you wanted, this is what you need to make you strong enough"
She stopped twirling the knife laying the point against her flesh and looking up at Sam expectantly.
"Just say the word"
[ooc: lol the looking up at Sam bit, I was like, is it across or up, before going silly Briege, its always up :p