But if you want to write in this subgenre of romance, take a look at this post by Fay Lamb on the basic components of romantic suspense. A lot of her advice can be applied to any genre, such as making your main character likable.
If you’re a fan of romantic suspense, which ones would you recommend to me as someone who loves mysteries but gets tired of the romance eclipsing it? And I hate stalker stories. If there’s a romantic suspense without a stalker playing cat-and-mouse with the heroine, I might make it to the end.