I've been in that dark place, and what I know from having traveled there is that it fills you (one) with lies. I'm glad that your T was able to reschedule for tomorrow, but I also know how difficult it can be to be counting on an appointment and then all of a sudden the thing you had been counting on just isn't there. I imagine you know it's not intentional on your T's part, but it's difficult nevertheless.

Please consider telling your T what you've been feeling. Critterlady said it well - you deserve to be treated well.