There is no possible way that anyone here could have the answer to your question.
she didn't have her phone/her battery died/she can't hear/she is working
Does she type with her nose?
maybe she's just a really slow typist
Building the suspense for you............like a ***** tease...the slower the better
Maybe she has big fingers and can't type on those little bitty keys on cell phones. I can't, so I just don't text at all.