"So let's pretend for a second that I give a shit about 'werewolf etiquette' and actually want to give it a try. How do I know that you're not just screwing with me? I mean, c'mon - 'I live next door to werewolves and they're kind of my only friends' is something you share before you agree to move in with someone. Now I just feel misled." Santana was, as always, somewhat full of it in this instance. She believed what Mercy said, and didn't even really care much that she hadn't filled her in. Hell, Santana was probably a lesbian, and hadn't shared that particular factoid, so she'd give Mercy a pass on not revealing her regular clique.
No, Santana was on the hunt for bigger game. See, she'd smelled a secret - a juicy one - and had a feeling that, with a little prompting, she might be able to figure out the truth. Sure, a part of her was a little hesitant to push - who know what the hell she'd get in this town - but a bigger part of her was bored as fuck and frankly just nosy. So, no. She'd get to the bottom on this.
"Anything else you want to share with the class? You know, before I get my jacket back and you freak out and tell me that your cousins are Werecows?"