The Right to Remain Single by Barbara Monajem

Faced with the ghastly suitors her father approves, Thomasina Warren decides to lose her virginity so that no respectable man will have her. Who better to ruin her than handsome, charming James Blakely? But James is an honorable man and refuses point-blank. Humiliated, she resorts to outright refusal to wed, with the help of a ghost who scares her suitors away. But four years later, her father has arranged her marriage to a stodgy gentlemen whose only condition is that the ghost must be banished forever.

James Blakely never forgot the lovely girl who asked him to ruin her, and when he offers to get rid of the ghost, he thinks he’ll be doing a good deed. Instead, he is faced with the hostile Thomasina, her cowardly suitor, pigheaded father, lecherous cousin, an exorcist monk, and a ghost who warns of danger and deadly peril—and a few short days in which to convince Thomasina that with the right man, she might just want to marry after all.