Faith isn’t into possessiveness and all that . Mainly because she’s not about to brag about the few things in life there were actually hers. And all the other shit she’s wanted and thought she could have but couldn’t don’t really touch her anymore.
See? Prison had helped her.
Besides watching Dean flirt with some other chick isn’t really something bothersome. He’s good at it, she’s dancing and the chick is hot. Hell, Faith might have gone after her if she wasn’t sure that the guy dancing with her wasn’t a vamp.
Still, she’s not going to lie and say she didn’t smile just a little when she saw Dean break off his conversation to watch as she heads out the door to fight.