It could mean that someone has made your life seem like a simple, ordinary story, like those often found in paperback novels. Maybe they've made it less complex or more predictable.
Hard to say for sure. Sometimes a novel like 'Falling into You' is available in both hardcover and paperback versions, depending on market demand and production choices.
One possible connection is that both can be a form of escapism. A paperback novel takes you into different worlds and stories, and Nickelback's music can also transport you to different emotional states or memories. Their music, like a good paperback, can be a way to get away from the daily grind for a while.
A paperback novel is basically a book that has a soft, paper-based cover. They tend to be more affordable and lightweight, making them convenient for people to read on the go or store at home without taking up too much space.
It might have made you more in touch with your softer side. You could have developed a greater appreciation for things like cute toys, pastel colors, and gentle activities. For example, you might now enjoy playing with dolls more or reading fairy - tales.
There were a few novels that he could recommend, including Zombie King System, Zombie Brother Biting Sister, and I Have a Zombie Brother. These novels all involved the plot of the older brother becoming a zombie. At the same time, they also included the plot of escaping with the main character, the confrontation between the zombie lord and the human race, and so on. These novels might meet your needs. I hope you will like them.