(1) You can bring up anything you want in therapy. It's your time. Certainly stuff that you'd just "let go" in life is worth talking about in therapy. Sometimes it is the small things that are the most revealing, about both yourself and the therapist.

(2) You say you understand that he doesn't want to do therapy over email but then said you've been revealing yourself over email and are upset with his responses and feel ignored. That makes me wonder
(a) why are you choosing to emotionally reveal yourself in a medium (email) that you know your therapist does not like to use? I'm not trying to be snarky here. I am genuinely asking. You could hold off and wait and express those same emotions in session, when he's actually physically present and able to respond fully. But you're choosing not to do that. Does it feel "safer" via email? And is choosing a safe but ultimately disappointing route potentially part of a pattern?
and
(b) I am really curious why he allows emails and why he has these different responses (reassuring vs. curt). It seems worth talking about with him for sure.

My therapist never offered me his email address and I am relieved. I don't want that option there.