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.

How long will it take for Olive and Adam to realize that they don't want to pretend anymore?