What was she reading from the dating book? I mean, what was it she was trying to communicate to you?
From my experience and what you've said so far, it seems that this girl is probably looking for a committed relationship. I'm not saying she has to get married, but she's looking for some type of boyfriend/girlfriend agreement. Knowing that, you'll have to decide whether or not you are willing to give that to her. I was in a situation like this once, and I decided that I liked her enough in other ways that I would try letting her be my girlfriend for a while, and I wasn't disappointed. She definitely turned from cold to hot very quickly!
And she was a good girlfriend too, for as long as it lasted. May or may not be the case with this girl.I would test it a little by using LMR tests to bring down her ASD, which is what I feel this girl has a lot of. Try setting up another date in the near future with this girl while on a date, possibly something big or romantic, then try escalating. If you're getting further, then she's definitely looking for a boyfriend, and won't give you anything until that happens. If she's not letting you do anything further, then she's probably just reinforcing her bitch shield with rebarb, and there's little chance of anything serious happening. With that knowledge, judge if you think she's worth the effort.