Oh, I'm sorry, LT. I sincerely despise those last-minute messages from my therapist. It's never "Just wanted to let you know I'm looking forward to a great session!"

That's a really excellent insight from R! I think it's more likely that Dr. T is disrupting his schedule for something good (kitchen remodel or finishing his basement, for example), but the secretive nature is throwing your imagination into overdrive. It would be helpful for you specifically if he could find way to tell you the truth that still feels comfortably boundaried for him. (Occasionally my T will delivery a cryptic statement that she has clearly crafted ahead of time, like, "Everybody is fine, but I need to go out of state to deal with a family issue," or whatever.)