Love, Theoretically

"The reigning queen of STEM romance."—The Washington Post

An Indie Next and Library Reads Pick!

Rival physicists collide in a vortex of academic feuds and fake dating shenanigans in this delightfully STEMinist romcom from the New York Times bestselling author of The Love Hypothesis and Love on the Brain.

 
The many lives of theoretical physicist Elsie Hannaway have finally caught up with her. By day, she’s an adjunct professor, toiling away at grading labs and teaching thermodynamics in the hopes of landing tenure. By other day, Elsie makes up for her non-existent paycheck by offering her services as a fake girlfriend, tapping into her expertly honed people-pleasing skills to embody whichever version of herself the client needs.
 
Honestly, it’s a pretty sweet gig—until her carefully constructed Elsie-verse comes crashing down. Because Jack Smith, the annoyingly attractive and arrogant older brother of her favorite client, turns out to be the cold-hearted experimental physicist who ruined her mentor’s career and undermined the reputation of theorists everywhere. And he’s the same Jack Smith who rules over the physics department at MIT, standing right between Elsie and her dream job.
 
Elsie is prepared for an all-out war of scholarly sabotage but
those long, penetrating looks? Not having to be anything other than her true self when she’s with him? Will falling into an experimentalist’s orbit finally tempt her to put her most guarded theories on love into practice?

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Published Jun 13, 2023

400 pages

Average rating: 7.71

563 RATINGS

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Community Reviews

jess.withbooks
Jun 05, 2025
8/10 stars
“Somewhere along the way your wires got crossed. Your brain decided that you're not worth people's time and effort, and that if you ask for anything, they won't just say no, they'll also leave you
That's not how love works, Elsie. But don't worry for now. I'll show you."
Shat
May 07, 2024
8/10 stars
I enjoyed the comedy of this book first, then the romance. Even with all the science lingo and academia talk it was an excellent read as usual.
Andréa
Jul 10, 2025
7/10 stars
Love, Theoretically – Review Considering how much I adored The Love Hypothesis, I had high hopes for another Ali Hazelwood STEM romance. While I did fly through this one, it just didn’t hit quite the same. Love, Theoretically leans edgier—with more foul language, crude sexual humor, and a heavier dose of smut—and I found myself not connecting with it as much as I’d hoped. The central theme here is the miscommunication trope—not my favorite, admittedly—but I think it was handled relatively well. The conflict wasn’t unnecessarily dragged out, which I appreciated, and it gave the story space to focus on the growing relationship between the main characters. Watching them fall in love was genuinely sweet. đŸ„°â€ïž (Note: While I personally struggle with the moral implications behind the miscommunication trope, I recognize that’s based on my own beliefs and isn’t an issue for everyone.) As a people-pleaser myself, I found Elsie somewhat relatable, and I loved that Jack just wanted the real version of her. Being accepted for who you truly are—flaws and all—makes for a solid foundation in any love story, and this book delivered on that front. I’ve experienced this in my own life, and it’s such a humbling, beautiful thing to be loved simply for being yourself. đŸ„č❀ I also want to highlight the chronic illness representation—Elsie lives with diabetes. This was a meaningful and relatable detail for me. It’s so important that authors continue to represent chronic conditions. Books like this give voice to those who often feel invisible, and that’s a gift. Overall—did I enjoy the book? It was okay. It held my interest, and I connected with the characters enough to want to see it through. But would I pick it up again as a comfort read? Probably not. I’ll save that spot for The Love Hypothesis, which still stands as my favorite Hazelwood book so far. đŸ«¶ I plan to explore more of her earlier works, since I resonate more with her original writing style than with some of her recent releases. â­ïžâ­ïžâ­ïžđŸ’« – 3.5 stars âž» QOTD: Have you read any Ali Hazelwood books? If so, which one is your favorite?
beatricetonguedi
Jul 08, 2025
8/10 stars
This book was, above all, a fun read.

Ali Hazelwood is respectful to both the pains and pleasures of academia, reigniting my longing for my own academic past. Despite Hazelwood’s (and romance writers at large) propensity for unrealistically speedy and deep devotion, she continues to create characters that feel more based in reality, then characters based in prose.

Love, Theoretically includes a brief discussion/mention of the aro/ace spectrum I was delighted to find in a straight contemporary romance novel.
Limbless book-lover
Jul 01, 2025
8/10 stars
Overall, I thought this love story was cute. I love an enemies to lovers theme. There were some parts of the story that were hard to read like all of the scientific terms there were times when I would skip entire paragraphs because the words made no sense to me. There were some cringe parts like the word the author used instead of “iPhone”, even though she used “MacBook”.

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