Amnesia

Even though it can be a rather cliched plot device, I tend to like stories in which a character suffers from some kind of memory loss. In each of these romance, one of the protagonists is dealing with either partial or full amnesia.

Abandoned
Blaze of Memory
Come Love a Stranger
Embracing Death
Father, Unknown (Harlequin SuperRomance #784)
Feeling Death
Freedom
Grayson Prentiss's Seduction
Great Scottish Devil, The
Night Storm
Rapture
Reaver
Return of Chase Cordell, The (Harlequin Historical #348)
Rogue Rider
Some Enchanted Season
Someone to Watch Over Me
Tucker's Claim
Very Vampy Christmas, A
Wed Under Western Skies
What the Bride Didn't Know (Harlequin Kiss #38)
Witness, The