I don't blame you for canceling. I've done the same to masseurs or shied away from meeting one because I felt a bit under the weather. I do wonder, was the first time you canceled on him recent? It doesn't seem like you are, but I do understand why he may think you're blowing him off. To paraphrase Goldfinger, "Once is happenstance, twice is coincidence, the third time it’s enemy action."