"Not someone you'd ever expect to have such uncomfortable fantasies about sex. "

What?

That's not even fucked up. That a pretty common and normal fantasy.

Lots of woman love roughness from time to time. But nobody like same old booring shit day in and day out not matter what it is.

Relationship is not about what she or you want. You need to learn to compromise and talk. Do 1 day dead fish and the next day show her who's the boss.

In the end, if you are not up to a comprimise like that, to make your partner happy then why would she want to compromise back for someting you want in the future? But if you definatelly rather break up then tie her down and beat the shit out of her pussy (methaphorically speaking ofcourse) then you should probably break up.

Making relationship open is probably some shit people say after 30 days of no sex. She loves you but not to a point where she has to compromise her sex drive for the rest of her life.

I'm sorry for you, I hope this story was fake.