Mistaken for Love by Anna G. Berrry:
https://books2read.com/b/mqDyG8
Kylie has spent her entire life living by the rules and as an adult now running her own bookstore, it is no different now. During the week of Valentine’s Day, Kylie is surprised by a series of sweet and thoughtful gifts. When the time for charades is up and her secret admirer has to reveal himself, Kylie will learn that sometimes the person who claims your heart is the person you least expected to come in.