If you write a book what you would like is for the reader to fallen hopelessly in love with your characters and their adventures. Ideally they should be smitten the moment they read the title or catch a glimpse of the book cover.
As a reader, this has probably happened to you at some point. The thing you’re looking for and the thing you find intersect in a wonderful manner and you feel like the universe is tilting in your direction. Hurray!
However, forcing someone to fall in love at first sight is as impossible with books as it is in real life. It happens when it happens and, unless you’re a master hypnotist with no scruples, beyond the control of mere mortals.
But a love affair doesn’t always require an aligning of the stars and planets. Sometimes people take a little time to come around, sometimes they rush in and regret it later. And our relationships with books are no different.