The Love Hypothesis
The Love Hypothesis has sold over 750,000 copies worldwide.[1]
AuthorAli Hazelwood
CountryUnited States
SeriesSTEMinist Novels
PublisherBerkley Books
Publication date
September 14, 2021
Media typePrint
Pages376 pages
Followed byLove on the Brain Love, Theoretically 

The Love Hypothesis is a romance novel by Ali Hazelwood, published September 14, 2021 by Berkley Books. Originally published online in 2018 as Head Over Feet, a Star Wars fan fiction work about the "Reylo" ship between Rey and Kylo Ren, the novel follows a Ph.D. candidate and a professor at Stanford University who pretend to be in a relationship.[3]


Originally published online in 2018 as Head over Feet, a Star Wars fan fiction work about the "Reylo" ship between Rey and Kylo Ren,[4][5] the main characters were renamed Olive and Adam (the latter after Adam Driver) on the novel's physical publication, with all explicit Star Wars references cut, and the characters on the novel's cover illustration designed after Driver and Daisy Ridley.[6][7]


The Love Hypothesis follows the main character Olive in trying to convince her best friend, Anh into thinking that her dating life is going great. In order to convince Anh, she pretends to date her professor, Adam. Olive and Adam try to convince everyone around them they are in love. But while convincing everyone, they forget that their feelings are supposed to be fake. How long will it take for Olive and Adam to realize that they don't want to pretend anymore?[3]



The Love Hypothesis is a New York Times best seller.[8]

The book received a starred review from Library Journal[9] and positive reviews from Entertainment Weekly,[10] Shelf Awareness,[11] and Publishers Weekly.[12] Kirkus Reviews provided a mixed review.[13]

In 2021, the book was a finalist in the Goodreads Choice Awards for Romance, coming in second place behind People We Meet on Vacation with 683 fewer votes out of 435,858 votes total.[14]

Film adaptation

In October 2022, it was announced that a film adaptation of the novel is in development from Bisous Pictures.[15][16][17]


  1. ^ "Sphere lands five more from the Love Hypothesis author Ali Hazelwood".
  2. ^ "Interview with Author Ali Hazelwood - HeyitsCarlyRae". 19 September 2022.
  3. ^ a b Mabee, Megan (March 1, 2022). "My RomCom Hypothesis: How The Love Hypothesis Reminded Me of the Power of Humor in Romance". Book Riot. Retrieved March 1, 2022.
  4. ^ Di Carlo, Daniella (February 14, 2023). "10 Successful Books That Started Out as Fan Fiction: 'The Love Hypothesis' (2021) — Ali Hazelwood". Collider. Retrieved February 14, 2023.
  5. ^ Held, Elizabeth (2023-08-29). "From Friends to Lovers: The Fanfic-to-Romance Pipeline Goes Mainstream". Vulture. Retrieved 2023-12-31.
  6. ^ Sam O. (February 16, 2022). "#237 — Head Over Feet by Ever-so-reylo". Worlds Between Bindery. Retrieved February 16, 2022.
  7. ^ Arzbaecher, Lauren (October 19, 2022). "10 books you didn't know started out as fan fiction, from 'Twilight' to 'Star Wars'-inspired stories". Business Insider. Retrieved October 19, 2022.
  8. ^ "Best Sellers - Books - Oct. 24, 2021". The New York Times. October 24, 2021. ISSN 0362-4331. Retrieved 2021-12-21.
  9. ^ Miller, Heather. "The Love Hypothesis". Library Journal. Retrieved 2021-12-21.
  10. ^ Lenker, Maureen Lee (November 11, 2021). "Hot Stuff: The 8 best romance novels of fall 2021". Entertainment Weekly. Retrieved 2021-12-21.
  11. ^ "Shelf Awareness for Readers for Friday, September 17, 2021". Shelf Awareness. September 17, 2021. Retrieved 2021-12-21.
  12. ^ "Romance/Erotica Book Review: The Love Hypothesis by Ali Hazelwood. Berkley, $16 trade paper (384p) ISBN 978-0-593-33682-3". Retrieved 2021-12-21.
  13. ^ "The Love Hypothesis". Kirkus Reviews. July 28, 2021. Retrieved 2021-12-21.
  14. ^ "Announcing the Goodreads Choice Winner in Best Romance!". Goodreads. Retrieved 2021-12-21.
  15. ^ Kroll, Justin (October 7, 2022). "Bisous Pictures Lands Rights To Ali Hazelwood's 'The Love Hypothesis'". Deadline. Retrieved October 7, 2022.
  16. ^ McPherson, Christopher (October 7, 2022). "'The Love Hypothesis' Film Adaptation Announced at Bisous Pictures". Collider. Retrieved October 7, 2022.
  17. ^ El-Mahmoud, Sarah (October 8, 2022). "Bestselling Romance Novel Inspired By Fanfiction About Star Wars' Rey And Kylo Ren Is Becoming A Movie". CinemaBlend. Retrieved October 8, 2022.