I'm sorry you felt so bad about your session. I know it's hard going back after a break. I don't think your T was being sarcastic about feeling like she was hit by a bus. Maybe your answer could have been "I'm sorry", without getting into a conversation about her surgery.

My T never mentions my emails to her unless I bring them up. I don't like it but there must be a reason Ts do that. My T likes to deal in the present, the way I feel sitting in her office, unless I bring up something else like emails or something that happened during the week. It doesn't mean she doesn't care about my feelings. It's probably difficult for your T to get back to work, too.

I think that you and your T will be fine. Hopefully, you'll get back on track next session and she will be feeling more herself then, too.