I've had quite a few of these kind of sessions myself and when I read your post it made my heart sink and I've got a knot in my stomach just thinking about how horrible it feels. I really feel for you. I totally get why and how you feel how you do. Its such a horrible place to be- to feel a gulf between you and T.

As much as I dont want to I usually end up calling or emailing T because I just cant bear things not being ok. I need T to be on my side and when I feel he's not totally with me I cant handle it. And it sounds like you really need to know T is right there with you right now. Can you call him to try and figure things out before next session? Maybe once he has time to reflect he could give you an answer as to why he didn't respond to you. I think you deserve to know that before next session
(((hugs))))