I was in a similar situation yesterday. My T called saying her car broke down & that she would have to reschedule our appt to 6:15 pm...I told her that was fine. When I got there I waited outside of her office because I thought she hadn't made it in yet, but she looked out the door & told me to come in. She had another client & I immediately think did she lie to me...I thought her car broke down. She didn't tell me she had another client so I thought she had lied. Then she went 15 mins overtime with that client & I thought about leaving as well, but stayed. I had to tell myself that I didn't know what exactly had went on so I shouldn't assume anything. Well when we got into our session she apologized & had explained that she had to push all of her appts back because of her car trouble. It finally made sense & she spent the time that was scheduled for her next appt that had canceled with me. I too think that I take T for granted. She has gone above & beyond with her time & yet I find a way to minimize the value. I'm working on it though & glad that we both stayed.