Layla,
I think I would be bothered feeling that my t shared things from my session with others. But did he actually talk about your session or did he just talk with her about the expired food without mentioning you? Either way, you should tell him that the idea of your session being shared with his wife makes you uncomfortable. Same thing with using the f-word. He can't read your mind, so telling him ensures he understands how you feel about these things.

But if you don't think this t is a good fit, there is nothing to say you can't look for another t who might be a better fit for you.