I'm someone who struggles with expressing anger in general--more likely to turn it inward. But I've gotten better at it. The few times I've expressed anger at my T, he has expressed some anger right back. Which has been difficult and led to a rupture or two. And led me to avoid expressing it for the most part, though I haven't really felt it toward him that often.

I feel like T's should, to some extent, be able to contain our anger, to not take it personally in the way that a friend or relative or partner would. My T doesn't believe that so much. I think of his somewhat classic (on here) line from a few years ago of "You affect me, LT!" As in he's going to feel something from what I say to him, good or bad.

I will say that my T has said it's much better (in all relationships) to express annoyance, frustration, or anger early on rather than letting it build into something bigger, where you then explode. And that has helped me in some ways, where I've mentioned things to him earlier (and also things to my husband and to friends, though it backfired with one friend, but that's a long story).

He's also said that he wouldn't just terminate me if he was angry with me, that we'd talk it through. And that has helped me feel safer in expressing things when I'm bothered by something he's said or done (yet true anger is still more difficult and scary for me to acknowledge in myself, let alone express). And he will also share if he's frustrated or annoyed with me (if I ask), though that's difficult for me as well.