QFT.
Sorry, but this seems like a classic ploy for attention. It seems like it went something like this...
Girl B sees you, decided she wanted to have some fun with you.
You respond to her text flirting, she gets the idea you're interested (after what she offered you, and what she has probably offered guys in the past, she's probably not used to losing a guy's interest before she's ready to)
Then you start withdrawing your interest a bit, regardless of whether you've flat out said it, she'll surely have picked up on the dodging and stuff.
She's probably worked out there's someone else. Which of course brings up the jealousy alarm bells, and maybe she's competitive.
So if acting, like someone else said, a ho hasn't worked with you, what else can she try? Acting a bit more "girlfriend", maybe?
This reminds me of a girl I used to know, she was a master at this sort of thing. She could flit from depressed and emotional (even suicidal), to overconfident, from acting an injured rape victim to doing as many guys as she could. I guess I'm trying to explain why I'm so cynical
. I saw the damage she caused and I really wouldn't want you to get sucked into it. And I'm not exaggerating about this girl I knew... If anything, I'm understating her by a lot.
Then again, I could be wrong, and Girl B could be the flipside of this... Maybe she's actually insecure/unsure and so uses sex to make guys like her?
But if that's the case, do you want to pursue something with someone who isn't brave enough to be themselves?
I think we've all seen girls (and some guys, but usually girls) pull this kind of behavior... And really it depends how serious you are. All this uncertainty in your last posts suggests that maybe you don't *really* prefer either of them, in which case maybe waiting for a girl you DO really like would be better?