Well, I actually read somewhere that consistency with appointments is an important foundation for the client in building trust and feeling safe. It is because the client can count on that being "normal" in their lives. As opposed to if people grew up in abusive homes where consistency was not there.

I have to have the same times and days each week, otherwise I feel like I am being juggled around and don't get settled.

I think if this is important to you, you need to tell your T how you feel about it. I think you have a valid point, especially since you have been seeing him for ALONG time. It is not like you are a new client that he is trying to fit in....

Just my 2 cents....