Wren Martin Ruins It All by Amanda DeWitt

Now that Wren Martin is student council president (on a technicality, but hey, it counts) he's going to fix Rapture High. His first order of business: abolish the school's annual Valentine's Day dance, a drain on the school's resources and general social nightmare--especially when you're asexual.
His greatest opponent: Leo Reyes, vice president and all-around annoyingly perfect student. Leo has a solution to Wren's budget problem--a sponsorship from Buddy, the anonymous "not a dating" app sweeping the nation. Now instead of a danceless senior year, Wren is in charge of the biggest dance Rapture High has ever seen. He's even secretly signed up for the app. For research, of course.
But when Wren develops capital F-Feelings for his anonymous match, things spiral out of control. Wren decided a long time ago that dating while asexual wasn't worth the hassle. With the big night rapidly approaching, he isn't sure what will kill him first: the dance, his relationship drama, or the growing realization that Leo's perfect life might not be so perfect after all.
In an unforgettably quippy and endearingly chaotic voice, narrator Wren Martin explores the complexities of falling in love while asexual. Hardcover; 400 pages