Who captured her?
Why did they capture her? For example, is she a spy or is this an obsessed person?
How long has she been held?
What is her plan to escape?
How does she get out? Does anyone help her escape?
What is the first thing she does when she gets free?
How does her captor respond? Does he or she hunt your heroine down? Do they go after someone she loves? What happens?
Note: This romance story starter could be set in any genre, from futuristic to regency. It could be paranormal, suspense obviously, and it could be urban fantasy. Let your imagination guide you to fit this writing prompt into your favorite genre. Have fun!