I had other topics I wanted to talk about today (H's upcoming surgery and some stuff with D's diagnosis). So I avoided saying anything about last week's birthday wishes to Dr. T until the very end, lest we potentially end up in a long conversation about them. (Though I did have a related insight I'd like to share with him at some point.)

I said: "I'd intended to avoid this, but I just wanted to make sure you were OK about the thing from last session."
Dr. T: "Unless you hear otherwise from me, assume I'm remaining in-person."
Me: "Oh, I mean, I'm glad to hear that, but actually I was referring to the world's most awkward birthday wishes."
Dr. T: "Oh, I'd forgotten about that until you mentioned it just now."
Me: "Great, so now you're remembering it!"
Dr. T: "Yes, I cursed your name for 3 hours that afternoon! Not really."
Me: "Two hours?"
Dr. T: "One and a half."
Me: "OK!"

Part of me wanted more clear reassurance, but I know his joking about it was his way of showing that it was OK and not a big deal. I know him well enough to know that if it was a THING, he'd have said so (and probably not waited until I brought it up).