I appreciate your curiosity and lack of assumption. My T is referring to disagreements of personal values and principles. (We've disagreed on plenty of things before now regarding our different approaches.) She gave 'vegetarianism vs meat eating' as an example. She said she was interested in trying hard to find something that might make us feel personally negatively about each other.

I can't imagine it being therapeutically beneficial to hear from my T that one of my attitudes leaves her feeling personally distant from / negative about me. This is why it feels like getting into weird territory.