Pre-transition, I had an absurdly low "female" T level, below the bottom of the range. When my ex found out, he said, "Maybe if you take a really low dose of T, you'll get up to normal female levels and not want to transition."
I know, I know--he was grasping at straws. But it showed me he just didn't get it, despite knowing me as male-identified for some eighteen years before that date.