Some recommended adult fiction romance books are 'Jane Eyre' by Charlotte Bronte. The relationship between Jane and Mr. Rochester is deep and full of drama. 'Call Me by Your Name' by André Aciman is a beautifully written love story set in Italy. It captures the intensity of first love. 'Red, White & Royal Blue' by Casey McQuiston is a modern romance that involves a relationship between a prince and the son of the US president.
One great adult fiction romance book is 'Pride and Prejudice' by Jane Austen. It's a classic that follows the relationship between Elizabeth Bennet and Mr. Darcy, full of misunderstandings, pride, and ultimately love. Another is 'Outlander' by Diana Gabaldon. It combines time - travel and a passionate love story set in different historical periods. Also, 'The Notebook' by Nicholas Sparks is a very popular choice, with a heart - wrenching love story that spans decades.