Two things:
1: No, it's not.
2: The reason she wouldn't give him that is the same reason you start threads on the subject. You have a disconnect with what it takes to land quality Women. Hint: It does not involve aggressively asking them out as soon as they show an interest in you and then staying home drinking PBR and trying to convince yourself that you getting shot down was 'better than making no move at all' while hanging out with your cat.
And there's no need to psycho-analyze anything. You're right about one thing... The girl wants attention. The quickest way to not get in her pants is giving her that attention.
So I should not give her attention while other guys are actually approaching her and asking her out? Because then she'll reject them for approaching her and asking them out and want me instead, even though when she was allegedly showing me signs of interest I ignored her.
Yeah, that doesn't make sense to me at all.
The reality is she's either an attention-whore, playing hard to get, or just isn't interested. I accept and am okay with that. Because I can almost guarantee you if her (or any woman for that matter) "ideal guy" (the ONE she/they romanticize in their head) approached out of the blue they would've said yes. Doesn't matter what he said, how/when he approached, anything because that level of attraction is already there. Her "criteria's" already been met and she'd be a fool to say no, regardless of everything played out.
Edit: I'd also say that I'm in a much better position now as well, and in many different ways. For one, we both know where everyone stands. There's no ambiguity anymore, or false sense of hope. Reality bitch slapped me in the face and I appreciate that rather than deceiving myself into thinking I had a chance and delaying the process.
And two, I now have the power to take that attraction away. You can't miss what you never had. But at one point she could have had me though. She might think I'm a chump right now for aggressively going after her, but next week she might miss it. From personal experience I had a girl aggressively chase me for months. Wasn't interested, wasn't the right time, excuses excuses etc. Then she started flirting with other guys, got a boyfriend, and ignored me and now I think she's hot as fuck and realized how bad I messed up. I'd kill to get with her now but I realize that opportunity has LONG passed.