The Third Wheel (Diary of a Wimpy Kid #7) recap

Greg reflects on his earliest childhood while dealing with Uncle Gary's latest stay at the crowded Heffley home. At school, the announcement of a Valentine's dance sends him into a prolonged search for a date. Greg studies the social competition, pursues unlikely possibilities, and uses Rowley as a helper, but neither boy initially succeeds. When Abigail Brown loses her intended date, Greg arranges for himself, Abigail, and Rowley to attend together. Their pre-dance plans and the dance itself are awkward, and Greg gains no romance from the evening. He later comes down with chicken pox after exposure to Abigail. While Greg is recovering, Abigail and Rowley become a couple, leaving Greg as the outsider in the arrangement he helped form. Uncle Gary's departure eases the situation at home, but Greg ends the episode without the girlfriend or social victory he had sought.

Greg Heffley has recorded years of middle-school schemes involving popularity, family conflict, and his friendship with Rowley Jefferson. Greg often treats Rowley as less sophisticated and tries to manage him, but Rowley's loyalty and natural friendliness regularly serve him better than Greg's calculations. At home, Greg lives with his parents, his older brother Rodrick, and his younger brother Manny. His attempts to gain recognition usually end in embarrassment or an unintended benefit for someone else.

Greg looks back on his life before and just after birth, interpreting family stories as evidence that he has always had to compete for space and attention. In the present, Uncle Gary moves into the Heffley home following another personal and financial setback. The extra adult makes an already crowded household more difficult, while Gary's history gives Greg an unpromising model of romance. Greg remains focused on his own social prospects and on escaping the indignities of family life.

Greg's school announces a Valentine's dance, turning the search for partners into the main topic among students. Greg becomes anxious that he will be left without a date and studies which classmates are available. He considers girls he admires, compares himself with more popular boys, and experiments with ways to seem appealing. He draws Rowley into the effort as a helper, assuming that Rowley has even less chance of finding a partner. Repeated approaches and plans fail to secure the outcome Greg wants.

Abigail Brown becomes available when the boy she expected to attend with cannot go. Greg sees a last opportunity and a group arrangement forms in which Greg, Abigail, and Rowley will attend together. Preparations for the evening reveal that Greg has concentrated more on obtaining a date than on making another person comfortable. The group goes out before the dance, but practical problems and social awkwardness keep the occasion from matching Greg's expectations. Rowley's easy manner increasingly contrasts with Greg's self-conscious calculations.

At the Valentine's dance, Greg fails to turn the group outing into a romantic success. He later develops chicken pox after being exposed through Abigail and has to remain at home. During his absence, Rowley and Abigail spend time together and become a couple. Greg, who recruited Rowley as a helper and assumed he would be the less successful of the two, is left as the third person outside their new relationship. Uncle Gary obtains enough money to move out, reducing the pressure in the Heffley household. Greg ends the episode with more space at home but without the social victory or girlfriend he pursued.

Greg, Rowley, and Abigail attend the Valentine's dance as a group after Abigail's intended date becomes unavailable. The evening does not give Greg the romantic breakthrough he expected. Afterward, Greg develops chicken pox, having been exposed through Abigail. During Greg's illness, Rowley spends more time with Abigail, and the two begin dating. Greg is left outside the new couple despite having regarded Rowley as his assistant in finding a partner. Uncle Gary, meanwhile, finally leaves the Heffley household after gaining money, restoring some space at home. The title's apparent third wheel is ultimately Greg: his elaborate attempts to secure a date help create a relationship between his best friend and the girl he accompanied.