I had a melt down over my session being canceled a few days before, even. I count on them so much in a few different ways.

Do you mean that your T canceled a session and never told you, or your T cancelled all your sessions going forward, but didn't meet with you to tell you?

In both cases, it stinks. If though your T had a huge emergency, the first one might happen?

My T once cancelled a session just a few minutes before bc he was stuck testifying in court about something. That I didn't mind even though I had planned to be there, bc he let me know ahead of time he was dreading the experience, and then he kept me looped.

When I got upset was when he refused to give any explanation , bc I felt put in my place or something(?).

If I arrived at his office, and there was a note or a person saying Hey Esme, Session Is Cancelled. I would assume something drastic happened to my T; If I arrived and found he would never see me again, I would soulsearch to see what I had done wrong probably, and walk away extremely wounded, but I wouldn't try to contact him again.