In Mary Balogh's A Christmas Promise, recently re-released as an e-book, the hero and heroine are blinded by both pride and prejudice, in that most iconic of romance conflicts.
Eleanor Transome is a merchant's daughter, a woman who has been given the education of a lady, but is not of the aristocracy. Her dying father is fabulously wealthy and loves his daughter with all his heart. He wants to see her well taken care of before he dies, and has aspirations for his grandchildren, so he buys up all of an earl's outstanding debts and basically blackmails the lord to marry his daughter. If he does not agree, Mr. Transome says, he will call in the debts and the earl will be ruined.
Randolph, the Earl of Falloden, is livid at Transome's machinations, but has no choice but to accept the offer if he wants to keep the manor in which he grew up. His debts are, further, not his own, but those of a former earl. He has assumed them as an honorable action. In accepting the offer, he believes that Eleanor just wants to enter the aristocracy, and that it was to please her that her father did as he did. Further, he sees how she treats her dying father, and he is appalled that she doesn't touch him, nor even seem to grieve when he dies. She refuses to put on mourning, for example, saying it was her father's wish that she not, and that she try to have a happy Christmas.
[First impressions can be so deceiving...]