Whoa! Glad you vented here, Not!
This reminds me of another thread here, the one asking if our Ts "check up on us." When I email my T, for the last few years I've made it a point to end with, "Please let me know you've read this." And T answers, "I have." This is because in the past, I'd email her and not know she'd read it. But those short, clipped answers hurt, from time to time, but I realized they hurt because I'd put too much expectation on what kind of email she'd send. I know I need to talk to her about it. If she doesn't know that I feel this way, her behavior would continue. Maybe, Not, that is what you've done: expected something without letting EmdrT know you wanted it. Now, I know that we often feel "I shouldn't have to ask for X," but our Ts are not mind-readers, and need to be told outright, what it is that we need, want, expect, etc. Maybe EmdrT wanted to keep the content of the email focused on the session time reminder. I don't know. And neither will you, unless you ask. Hugs.