I can see both sides of the argument here but I guess the meaning lies with how it feels in that moment. The initial interpretation seems to be lighthearted. I would go with that gut reaction but feel free to question what it means next time you see him. MIAN, It's okay to ask for clarification and maybe think about that if it bothers you.

Personally, I'm reminded of how my T will respond when I am dealing with something that has a more 'obvious' interpretation, i.e., something we've gone over and over about yet I'm still not seeing. That happens. It's why we're in therapy. Recognizing the patterns, influences and barriers to progress, etc. takes some time.

In session I will often decompress my stress with humor and childish responses. I also laugh at the 'obvious' revelations— because, well, they never are really obvious are they? Not until we voice them out loud, and then they're often difficult and embarrassing.

An example: I was talking about a particular negative self-defeating obsession I was having. It was quite heavy for me but when I voiced it outloud, My T responded by laughing out loud! Now, she immediately apologized —*and said, "You know where this is coming from don't you?" It was only then that it dawned on me. I smiled and said, Oh well yes, it's...duh."

To describe this out loud seems like I should be offended. What I was saying in that moment was actually quite difficult to voice, but the important thing for me was that her response was in line with my own sense of humor about myself. She was actually being rather empathic in that moment. When I realized what she was saying, we both laughed. The whole thing felt lighter after that.

The differenced here are that a.) she realized her laughter could be misconstrued and apologized first. b.) she explained why she was laughing. c) I was in on the joke at it was not at my expense.

So if this feels like this might bother you, I would ask your T to explain his reaction ('You smirked/laughed when I talked about...') and feel free to tell him what you fear it might mean (It felt condescending... are you mocking me? )