Two things:

First, as I said before the victim always has the choice; if there is no (perhaps hidden) benefit in the victims psyche the story remains unbelievable.

So it should be gradually pushed further, deeper into accepting her fate (without forgetting to gratify her own hidden needs) in a way that the victim ( and the reader) feels the best option is to obey.

Second, the story is always in a kind of parallel universe and is wroten to arouse people not to make them follow the example.

thanks for reading

Wool