If you do the "confronting" during your session, then you don't have to wait a week. you get T's reaction in real time, and you can survive it right there in T's presence. I don't email my T about therapy issues so have not had to survive what you describe, although I've had to do it in session. I think your T's answer was definitely reassuring, though. It sounds like he welcomed your input. I think it's hard to judge tone in an email.

I don't see what you did as "confrontation", which has a negative connotation to me. (I also think of "confrontation" as something bigger and more monumental, such as drawing a person's addiction problem to their attention or telling one's spouse that you know they are having an affair.) Readytostop, you just spoke up for what you needed and shared your opinion on how the session went. Now if you can start doing that in session, that would be even better because then you get immediate feedback.

I have gotten angry at my T a couple of times since beginning therapy, and it was tremendously helpful to me to see that our relationship could survive that. I am always scared about making people angry, so to see that T could accept that and we could talk through it were huge. It made our relationship stronger, not weaker.

If you mean does the T always change to suit what the client wants, then no. But you get a chance to talk about it with T, and reach a compromise, if necessary. Sometimes the client does get what he/she wants. Sometimes there is discussion and the client and T both reach new understanding, and the client may change what it is he/she wants. Sometimes it ends up "we agree to disagree" or "I see your point, but the way I view it is...." Those latter are not bad outcomes. Definitely survivable! And I consider them "resolved."

On the other hand, if the client does not bring up the topic that is disturbing him/her, then it will probably not get resolved.