As women’s rights have improved over the last few decades, women’s happiness has declined - women were, on average, happier in the 1960s than they are today. Maybe that’s part of it.
“With great power comes great responsibility.” Autonomy is a good thing, but then you don’t get taken care of, and you make your own decisions, which comes usually with regrets, no matter what you decide. Being dominated and controlled means you never have regrets, because you never got any real choice. Maybe some significant fraction of women want to fantasize about what it would be like if some rich, handsome, dominant male took over and made all the decisions and removed all responsibility from them by forcing them to submit.
I haven’t read the book or seen the movie, and I find BDSM in any form either incomprehensible or disgusting, but FWIW I thought some dominant men tend to experience the same sort of thing, where they find relief from being “in charge” with some dominatrix who orders them around. (I have no cite for that - just IMO).
I think the Twilight series, one of which I read and I saw the first movie, is a somewhat different dynamic. Twilight is an adolescent fantasy of a socially and physically awkward girl, who is selected to be loved by a handsome, mysterious stranger, and they can’t have sex at all, at least in the beginning. Thus the adolescent girl gets the attractions of romance without the complications of sex. But the vampire guy woos the girl and makes her out to be special, basically with no effort on her part, and without the expectation that she will have to have any kind of two-way physical relationship, which always makes matters more complicated.
Regards,
Shodan