I hate that too dj! I can totally empathize. But, it might not be her fault. This is what happened to me about a month ago:
I had an appointment with one of my favs. Had seen her a few times before, and we clicked, and I was really looking forward to our appointment. We had each made some special arrangements for each other, which were again confirmed the day before. I arrived at the in-call hotel and text her for the room number as was the procedure for this lady. No answer! hmmm, maybe she's running behind. Try again, still no answer. WTF, I was PO'd. Waited 30 minutes, tried a few more times and gave up, went back to the office. The 30 minute trip was good to cool off. LOL
I send a polite e-mail, asking what happened, and she replies right away> "Where are you, I'm waiting at the hotel."
Huh? WTF! I answer back right away, explaining that I was there, sent 5 messages, but got no reply. She says she didn't get any messages, and said she's calling her service provider, and that she is so very sorry. Then a second message a few minutes later and she says, yes, there's a problem with her cell service and is on hold with them to fix it, and she's very VERY sorry etc. I answer, "Maybe we can reschedule for another day, and too bad, I am horny as hell!" LOL
She answered right back, "I'm horny as hell too, and was really looking forward to seeing you"
OK, maybe that was a line, but she's always been up front with me... so I gave her the benefit of the doubt. I answer: "I can be there in 30 minutes if you are still available." And she answers back, "Oh please, can you? I SO need some one to comfort and snuggle me, I'm having a real bad day- my next appointment just canceled on me on short notice. I'm available all afternoon now!"
So I get the room number, jump in the car and head back to see her. I'm glad I did, it was likely one of the best appointments I've ever had! (Oh and BTW, she was STILL on hold with her cell provider, when I arrived! But she promptly blew them off within a minute of my arrival.)
Things happen! Its a fact. How you deal with them can make or break a situation, and it might not be her fault.