There are a variety of reasons. One is that some men have trouble handling a Katie girl. We're passionate, ambitious, and sometimes yes, wildly difficult. Not because it's cool to be a great deal of maintenance required, but because we have opinions and aren't afraid to stand up for them let alone share them with you. We don't have simple minds and nothing about a Katie girl is basic. Ever see that couple walking down the street where the man is drop dead gorgeous, but not the woman? Now she may not be ugly, even far from it, but there's nothing particularly unique about her. She looks like a dime a dozen, and the personality is the same. An attractive man may prefer being with someone less attractive-looking for the sole purpose of being the better looking one. And because they know this, they too realize that these women will also worship the ground they walk on. They need that sort of validation from this kind of girl as they'd never receive it in the same way with a Katie girl. Plus, a man like this tend to also be extremely insecure or narcissistic, and would also have trouble being with an extremely desirable woman. Just the idea of another man looking at her would piss them off to no end. (Yes, I've been with a guy like this before, and ugh, such a turnoff.)