There are two possibilities. She either booked something with a regular after you called and blew you off or she got spooked by something having to do with you or-either real or perceived.  In either case you are not going to hear from her.  I know it sucks but it's best to just move on. It's part of the hobby.

I set up an incall with a well reviewed provider And she wanted me to call when I arrived. When I called she just didn't answer. I called and called and called with no answer and left voicemails. Now she will not return my emails. What's up with that?

....and your gain to see someone better and will appreciate time with you!

your $$$ to spend on another hot chick who will hopefully be more professional.  

When you read this lady's reviews, did any reviewer mention anything about her being flakey?

Post what happened in your regional board.  Identify who it was.  Be prepared though for the White Knights to comes out and defend her honor and try to blame you for what happened.

Its information that should be shared.

Ultimately that has happened to everyone here.

Here's the thing. I'm wondering what you mean by 'called and called and called'. Yes, sometimes you get blown off. Sometimes something does come up with the provider. There's been other topics dealing with accidentally spooking a provider. If you spooked her, the reason for not replying to your emails is just that. If she flaked on you, that's the other alternative. Live, learn, and move on either way.