Okay, so this book is emphatically not the book for me.
First off, Landon was an absolute creeper to Chance. The way that Chance is portrayed, we're supposed to think that Chance is a jerk, but Landon was romantically pursing Chance after Chance explicitly told Landon multiple times to leave Chance alone. We know from the first book that Landon had a week long sex-marathon with with Chance, after which Chance indicated that he absolutely did not want either a romantic or sexual relationship with Landon. This could have been varying degrees of acceptable or jerkish (depending on how clear Chance was before on what was going on), but what we do know is that rather than accepting this, Landon kept watching Chance's games, attending Chance's games, and contacting Chance in ways that Chance found objectionable even after Chance expressed his objections. That is so incredibly not cool that it cannot be expressed enough. Landon was violating Chance's boundaries at one point pretty badly, and the fact that Chance didn't know that Landon only accidentally showed up in the same place as Chance at a later point wasn't something Chance could know. If Chance was not been clear about the week fling being just sex or if he lied and mislead Landon about his intentions (and we don't know what happened because we aren't told), that would have made him a horrific asshole, but he still would have been justified in telling Landon to back off, and Landon should back off. The fact that Landon doesn't places Landon in the wrong.
Second, both Ben and Landon's willingness to sign on to hurt Ben's mom (someone who was apparently highly involved in Landon's upbringing) by inventing a story that they knew and intended to hurt her rather than coming up with a far less dramatic story baffled me. This story would also intentionally violate Chris's boundaries (Chris being a member of Ben's family), which was also creepy, and I don't get why either of them would be willing to that, either.
There was nice stuff about this book (science puns, science geekery, science YouTube, new parenting humor!) but it couldn't overcome the fact that the MCs were apparently unmitigated jackasses. I was incredibly surprised to find this in Sunday's books, as I've adored many of her books in the past, and even the books of her's that I haven't adored haven't been fallen to the level of "I actively dislike this book," before. I kept hoping that the book would improve, and I suppose that to a certain degree it did, but it never was able to get to the point that I didn't actively dislike the MCs.
I will read the next book, though, as I do generally really like Sunday's books. This one was just a massive miss for me.