Just chiming in in agreement with some of the previous posters.
Make sure the girl has her own goals. She can be strong, even as her loyalty changes. Most captivity novels show this as the captive trying to run away, over and over, or keeping secrets and her own little plan away from her captor, while still slowly turning to him. And he's kind to her, because deep down, he's a good guy caught up in a bad situation.
That's the trope. It's a successful trope, but it's a trope. (See Stolen by Lucy Christopher for the most recent popular YA version of this -- warning, it's written in first person, in second person. Not sure what that means? You will be...).
There's a whole series of tropes about kidnapping and Stockholm and handsome captors with steel-blue eyes.
Do you want yours to be that way? Do you want fiery independent girl helping the rebels who captured her because clearly, their cause is in the right? Do you want helpless girl grow into her own under the watchful tutelage of her handsome and more experienced kidnapper? Do you want woefully misunderstood kidnapper who only took the girl to save
puppies and children everywhere?
What makes yours different?
My WIP is about Stockholm Syndrome in captivity; about a girl, about a man. It's a far cry from youth adult, and it's not a fluffy romance in the end. But I wrote it because it called to me, because it begged to be written.
And because I was held in captivity for four years as a teen. Every book I read after that dealt with captivity or with Stockholm Syndrome made me want to scream -- the weak girls, the somehow handsome-and-nice men. The romantic endings (or the separated-but-longing-for-him endings). The way the girls turned without a fight. They lost themselves in the MMC.
I wrote a book about a girl who stays strong the entire way through, even when she's on her knees on the concrete, out of choices and out of hope.
A girl who turns into a weapon. Who was a weapon all along. And the man who turns her.
I wrote a novel about Stockholm Syndrome, but it's not a romance. It's a psych thriller, and it's chilling and it's beautiful at the same time. My beta readers consistently come back with the same word: intense.
Don't get me wrong - I love your normal Stockholm Syndrome romance as much as the next reader. They're just all awfully similar. I read
all of them that seemed remotely comparable to where I was going with The Dark. And I made damned sure my girl wasn't weak.
So for yours, you can have a strong girl who changes and becomes stronger and different by the end. Or you can start with a weak girl who becomes a strong one -- that's a little easier to do in YA (it's a more accepting market of that ideology), but you still need her to be
interesting and relatable for your audience. If she's all "save me, oh handsome boy"... well, don't do that. As Emily May shared on Goodreads, a quote from Black Ice:
“I tapped my cup to his, grateful to have found Shaun, because for a minute there, I'd thought I was going to have to save myself. Instead, I'd wandered into the protective care of a sexy older man.”
What even is that? How to Murder Feminism in Two Sentences or Less? ~ Emily May
Don't murder feminism. Grin.
I would truly be happy to bounce ideas and resources back and forth with you. I'm a little too well-read in the subject of Stockholm Syndrome, and can make specific book recommendations depending on your angle. That includes some AW threads that have been particularly helpful (such as the Romance Heroine's Goals one over in QLH).
Like with anything else, or anything sensitive in nature, just be sure to treat the topic with respect. There's that whole "write what you know" quote, which has recently been flipped around here on AW to "know what you write." Make sure you know what you're writing about, so you can do it well. So you can make it an excellent read, and one that doesn't make people like me roll their eyes (that's twofold: me, who likes to read captivity romances as much as the next guy, and me, the captivity survivor who did not have a handsome good-at-heart kidnapper as a love interest).
Good luck.
~ Anna
P.S. There's a gap in the YA market for a well-done captivity romance novel, by the way. Stolen is the only recent one and it's... well, it's it's own kind of special. I didn't dislike it, but I'm not sure I liked it either. I was left kinda shrugging my shoulders at the end. There's a lack of
satisfying YA novels that are recent and share a message worth sharing.
And that message shouldn't be about the protective care of a handsome older man. Grin.