I asked her on our date, if she preferred texting or talking on the phone. She was indifferent about it and said that she's not the type to constantly be on her phone. She even stated that one of her biggest "pet peeves" are people glued to their cells.
So I think she's just one of those girls who isn't a super hyper texter, that floods your phone with emoticons and "LOLZ". Which is nice, but occasionally hard to gauge