My True Love — Cheryl Holt

SHE WAS HIS PAWN IN SEEKING VENGEANCE...
Penelope Westmoreland had dreamed of the day that she'd marry a dashing nobleman and live happily ever after. Instead, after two betrothals ended in disaster, the pampered heiress found herself on the brink of social ruin and doomed to wed an aging and lecherous Earl. But just when she had given up hope of escaping this nightmare, a gallant stranger came to her rescue, sweeping her into a thrilling clandestine affair that promised all the romance Penelope had ever craved...


... UNTIL SHE BECAME HIS ONE TRUE LOVE
Lucas Pendleton had come to England for one purpose and one purpose only: revenge. But it didn't take the handsome young American long to discover just how difficult it was to threaten a man of the Duke's station. And Lucas was still struggling to come up with a plan when the answer all but fell in to his lap. What better way to make the Duke pay than by using his daughter? Yet when Lucas sets out to play on Penelope's naivete, it is he who is caught...as this fiery innocent makes him question his actions even as she wreaks havoc on his heart.