My T apologizes when she's running late, is delayed in responding to communication (email, text, phone) or makes some kind of mistake that impacts me. She does not apologize for things that are out of her control or that were unintentionally triggering. For example - if she's running late for my appointment (rarely), she will apologize as soon as she comes to get me from the lobby. If she's said something in session that triggered a strong emotional response due to my own history, she will not typically apologize - that's my own stuff and I accept that. She might say that she's sorry I'm feeling triggered or in some other way acknowledge that what she's said has had an impact on me, but she doesn't apologize for the actual act, and I don't think she needs to.

My T did apologize for not suspecting bipolar disorder sooner than she did, but I don't present in typical ways, and it took me a long time to trust her enough to let her see the "true" me. So, I'm not sure that apology was necessary, but I appreciated it none-the-less.