SRV, Perhaps there was nothing malicious in her intent and she just wanted to f*ck. Sometimes you're in the mood to ML and take your time and others you just want fast and furious.
It sounded to me like you two just were not in sync as far as what style of ML sounded good to you at the moment. I would try not to read anything more into it than that.
Unless you are saying that it's ALWAYS like that. In that case, yes, I would find that unfulfilling and cheap. I also wouldn't want someone taking Progress Reports every 10 seconds to guage how it was going. It might be, though, that you two are discovering each other's sexuality and what makes you tick.
Why don't you initiate the next time and let her know that you are in the mood for a longer session?