I like the more "mild" (I.e. no guro, no SA) Stockholm Syndrome stories, but I enjoy them because I separate the fiction from reality, especially since what that kind of content romanticises is messed up. That's why that kind of stuff is just fantasy, because these kinds of dynamics in real life never really end well.
That being said, reading stories like this when I was a teenager really messed up how I viewed love for a while in my own personal life so I'm conflicted. For purely entertainment purposes I like these sorts of stories, but the social impact this may have on young girls is detrimental. But that's why this is josei and not shoujo.