I had feet.
The ex said the fact that my toes point slightly upwards when my foot is relaxed means I'm some sort of monster as women's toes should always point perfectly flat in line with the sole. Even worse, when I walk barefoot, I walk and don't tiptoe like women in shit movies after they've had sex or are shown getting up in the morning. His suggestion of taking a hammer and making them properly flat if he ever saw my wrong toes again was not appreciated.
There were many other things I did wrong as well, mostly around daring to like fish, seafood, vegetables, salad and rice, being prepared to eat things without a sugary, gloopy sauce on them, not pretending to eat less than a sparrow, & stentatiously declare I was simply full to the brim and then go hungry for the next week to make up for the calories I'd looked at or taking up more space than the edge of my sitting bones on a seat. And watching something that wasn't a soap (so you can have conversations at work without them thinking you're a freak/that you think you're better than them) or a TV talent show/Top Gear or, worse still, owning books and reading them - that was really offensive to him.
He pretty much wanted a tiny, delicate, timid little mouse who was ashamed of being intelligent and hid it all the time, even from herself.
I've asked DP before if there's anything that he thinks I do wrong or that annoys him. He said he'll tell me when he finds something. Still not got back to me after nearly ten years, though.