It's their attempt to explain away the fact that they are whores.
"I'm not a loose slut who decided to get fucked by psychopathic Chads; they just abused and controlled me time and time again, teehee."
This is the foid version of public relations. Even in a soyciety where they are granted agency, and are therefore responsible for their own actions, they pretend otherwise in order to maintain the image of being meek and chaste (and secure future betabuxxes).
Note that the term "rape" etymologically refers to having something stolen from you. It is very convenient for foids to adopt this language because it implies that their good qualities were merely stolen from them when Chad fucked them in a ONS; that, by right, they remain a worthy wife and you should nonetheless invest resources in them.