IFIAyaQD: Calling all readers

I was reading Jamie Wyman's new book (Wild Card, for the curious) and mulling over my ill begotten southern gothic story, and I began to wonder.

How frequently do we see the reverse Romance novel? Where the plucky and independent yet still somewhat innocent young man finds himself strangely attracted to the mysterious figure who may have a dark secret locked away in her closet? (Or, you know, he has to choose between the safe and dependable but boring milquetoast girlfriend and the creative passionate unpredictible maybe a little dangerous other woman? Whatever your trope is.)