He's left in a grumpy mood, making Rowley try to cheer him up with a joke, which only makes Greg mad, leading him to badmouth Rowley; he reports Greg for this, which makes Susan angrily tell off Greg for his misbehavior.

Greg says that he put a flag in the lot of Rowley’s house before they moved meaning that he owned the house, resulting in Rowley giving up his bike. This book shows Greg's negative traits a lot more deeply and clearly, which caused many fans to criticize Greg's behavior in this book. Greg complains that Rowley was the only one who did classwork, causing the teacher to increase Rowley's grade to a "B.Rowley justifies that the book would be only a page long, then suggests various ideas, like making the autobiography about the both of them, or making a spooky series about solving mysteries. Then his mom gets him a book on how to make new friends, such as a knock-knock joke, which initially doesn't work on Greg.

In the last chapter, Rowley decides to make the diary all about himself instead, and explains what happened later that night with Greg; Rowley's parents say that he should find new friends, but Rowley is unsure, as Greg takes up so much of his time together. Rowley is struggling to answer the questions with the notes he has, and is constantly interrupted by Greg, who has questions for him.Get ready to see the Wimpy Kid world in a whole new way with the Awesome Friendly Kid series, written by Greg Heffley’s best friend, Rowley Jefferson.

Rowley tries to sit elsewhere, but has to run away after a person accidentally falls after Greg tied his shoelaces together, thinking it was Rowley. In The Third Wheel, when the family is going to have dinner with the Stringers, they cleared out stuff, and the Good Boy Reward appears. Rowley starts his diary by explaining that he started writing in one because his best friend, Greg Heffley, owns one as well. While Rowley is well ahead in the chapter they are studying, saying they should do some questions, Greg said they should start from the beginning of the chapter (Greg hadn't even read it), and Rowley predictably thinks it's a waste of time. After Susan has left, Greg and Rowley get into an argument (started by Greg) about what happened earlier, which culminates in them striking each other with pillows.Kinney later developed it into a full-length book, becoming Rowley Jefferson's Journal, because he enjoyed writing it. Jeff has been named one of Time magazine's 100 Most Influential People in the World and is one of the Top 10 bestselling authors of all time. Rowley’s best friend Greg Heffley has been chronicling his middle-school years in thirteen Diary of a Wimpy Kid journals .