And this is why I'm glad none of you nikkas write this show. At no point in time has Sansa shown a taste for blood and that would've been so out of character and made absolutely no sense at all. Ramsey is levels above Joffrey when it comes to this sick shyt. To expect Sansa to be able to match wits with him from the jump is outlandish. Even LF couldn't prepare her for that. The old Sansa would have been shook of Myranda and would not have talked to her like that, the old Sansa would have let Reek take her arm and escort her to the Godswood. So we can see she has grown but no way in hell is she ready for the nightmare that is Ramsey Bolton
breh, sansa married dude and knows what the deal is, she was gonna get fukked regardless of her maturing, and we know it wasn't gonna be pleasant, hell dany had the same reaction, that has nothing to do with her coming up with a plan/not being a victim. in no situation were people going to be happy with him fukking her unless they completely broke character and he decided to gently make love to her...
Let's put it like this....
Think of the stark kids and their progression from season 1
Jon was placed in impossibly difficult situations, during which he lived with wildlings and was able to observe leaders like Lord Commander mormont, stannis, and mance up close. And so now that HE has the opportunity to lead, he's able to rise to the occasion and do things he didn't have the capacity to do in earlier seasons
Arya was placed in impossibly difficult situations, during which she was able to observe some of the finest fighters and killers up close like syrio, the hound, and jaqen. And now that she has the opportunity to become one, she's able to rise to the occasion and do things she didn't have the capacity to do in earlier seasons
Bran was placed in impossibly difficult situations, during which he had jojen and the three eyed raven guiding him towards awakening his abilities. And now he's presumably still with the three eyed raven, becoming more powerful than he was and developing the capacity to see the bigger picture that the mission is more important than family (which he didn't have the capacity to do in earlier seasons)
In the same span of time, sansa has had the opportunity to observe the finest manipulators and political operators up close- tyrion, cersei, littlefinger, margaery. People who told her how to no longer be helpless.
At the end of last season she took her first steps towards agency and learning how to play the game. And now that she's been given the opportunity to at least ATTEMPT to take another step, she.....backslides to being just as helpless as she was in season 1, episode 1. As it stands, Sansa is still some helpless little girl waiting for someone else to save her. The fact that after 5 seasons y'all thought it was more likely that fukking "Reek" would attempt to save her than her attempting to save herself is telling, as is your inability to understand my frustration at her development compared to her siblings.
Also,
1) As I posted before, the show gave us an example just last season of ramsay's sadism being directed - not controlled - by one of his lovers towards another, and had myranda inform sansa about it in THIS episode. So it CAN be done and the show brought it up again, REMINDING us that it can be done
2) they showed ramsay losing patience with myranda and threatening to kill her for her jealousy
3) They showed us ramsay having sex last season in a manner that didn't involve him brutalizing his partner
so yeah, ramsay can have a sexual relationship with someone that doesn't involve rape and torture, provided he currently sees that partner as a playmate instead of a toy. You can glean that much from what Ramsay himself said earlier this season when he warned myranda about her jealousy boring him and smiling when she bites him
So let's recap. Sansa has had time to observe ramsay, and knows that he is cruel and murderous. Sansa thinks littlefinger or stannis will be coming soon to rescue her, so she just needs a way to avoid ramsay's sadism for a short while. Sansa has had time to formulate some sort of plan. Sansa watched what margaery did to avoid the cruel whims of another sociopath for a short while and, further, Myranda has shown that ramsay's sadism can be avoided for a short while by directing it towards other lovers of his that he's grown bored of. Ramsay has grown bored of myranda. Sansa knows myranda has feelings for ramsay, is crazy, and sees sansa as a threat. Sansa has had it drilled into her head for five seasons that the path from helplessness to agency involves manipulation, lies, seduction, and ruthlessness. Sansa finally accepted this last season when she lied to her aunt and then lied about her aunt's death
It's not a reach to think that sansa, being desperate to never be the helpless victim of a cruel sociopath again, and seeing no other option to avoid it, would try to direct that sociopath's cruelty towards another, seemingly insane girl who probably wants her dead.
That decision,
regardless of whether she's successful in her effort or not, would offer much more interesting possibilities for sansa's development going forward than her resigning herself to being raped.