Yeah, I actually was wondering about that. If the Female protagonist is not in a Josei/Romance they are basically psychopaths. Like I love "So Im a Spider, So What?" But she doesn't understand human emotions that well and to other people she appears always indifferent to everything(It is explained why near the end). But I've read a couple female protagonist stories, and they all seem to lead to the girl becoming really cold hearted but bad@ss or always has been cold hearted and learns to care again (but almost always only Yuri).