I will survive. I am over it.  I found a sub at the last minute.

.

At least you had a Plan B.  
Before when this happened to me, I would get so pissed and make a thread about it divulging the provider's name.  
Now, I go the nearest high end dining room and order a Surf & Turf, a bottle of Bordeaux, desert and give the server a fat tip. Instead of paying the provider, I just go spend that money on myself. Pure decadence and gluttony.  
Thanks to Yelp, I write a review as well.

I don't want to say who it is, as there may well have been a good reason for it that I just don't happen to know about.

and even some back channel word of mouth is not going to hurt them because other mongers don't think it will happen to them and only care about what is in the reviews....

If she doesn't even have the courtesy to come up with an excuse, I would out her in PMs. Otherwise, you are just venting and really don't serve any purpose here (it's your right to vent of course). Yours will be just one of the many nameless NCNS's. People bitch about NCNS but never name names even in PMs.

I bet you get a response from her soon.

I don't believe that I was just stood up twice in one day. Back to back by 2 different people that were screened and confirmed the appointments right before we were planning on meeting. Both were going to be 90 minutes in length. Because I am low volume I turned down other requests and of course I was waiting at the hotel room that I wasted my money on. I'm not in the best mood now. This hardly ever happens to me so I can't help but laugh that this happens to me on Friday the 13th.  

I don't need to know. I would rather have someone not tell me a reason than lie.