Butter!
Rough Around the Edges
Then just accept she has different definitions for some things then you do. Why do feel as if you two have to agree on the definitions? The classic “we shall have to agree to disagree” is a truism because we all do it for the sake of “getting along” in society or rather “managing to coexist even if I am smiling through gritted teeth to do so!”.
There are many things I can agree to disagree with people on. But we're talking about changing the way we understand physical reality. I can't agree to disagree, because societal norms (language, legal, social, etc.) are being changed, and more will likely follow. I'm a part of society, so I have to kind of be a part of it. Therefore, I feel I have to understand what is going on, at least somewhat.
And I thought I more or less did, until sex and gender started meaning the same things sometimes (or maybe all the time, depending on whom you ask).