Perhaps it's a misunderstanding. The girl might think the boy is responsible for something that he actually isn't. In a hasty moment, she resorts to this unkind act. Or it could be part of a power struggle. In a school or social setting, she wants to show that she can dominate or get the upper hand over the boy, and a wedgie seems like a way to assert that dominance.
Maybe the girl is just being mean. Some kids can be cruel without a real good reason.
It could be that the boy has done something to annoy the girl previously. For example, he might have teased her about something she's sensitive about, like her appearance or her hobbies. So, as a form of revenge, she gives him a wedgie. Another possibility is that the girl is influenced by the wrong crowd. If she has friends who think this kind of behavior is funny or acceptable, she might be more likely to do it to the boy.
Chapter 612, "There's been an accident on the show!", is the clearest early answer because it turns Jiang Shen's situation into a concrete plot event. Early on, His family's residence used the mortise and tenon structure in many....
Chapter 368, "You Don't Deserve to Be My Mother", is the clearest early answer because it turns Deserve's situation into a concrete plot event.
Chapter 893, "From today onwards, he is my half-brother from another father and mother!", is the clearest early answer because the buildup finally cashes out in a real clash.
Chapter 383, "Doomsday Beehive", is the clearest early answer because it turns Doomsday Beehive's situation into a concrete plot event. The chapter gives readers a real answer by opening on Jiang Li's pale fingertips rubbed against the handle of the coffee...
Chapter 519, "I'm Here to Participate in the Program", is the clearest early answer because it turns Divine Son's situation into a concrete plot event. It opens with Seeing that everyone who went to attack Jiang Li had failed...
Chapter 658, "What About My Daughter-in-law?", is the clearest early answer because it turns Jiang Cheng's situation into a concrete plot event. Early on, Jiang Li remained calm and composed, "You didn't ask me, did you?"....
Chapter 405, "The Person Saved Casually Turns Out to Be a Diplomat?!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. The chapter turns that into something concrete by moving from The medical student was completely dumbfounded.
Chapter 366, "The Safety Lock Got Flattened?!", is the clearest early answer because it turns Miss Jiang's situation into a concrete plot event. The chapter turns that into something concrete by moving from You're finally out!" Xiao Wu saw Jiang Li and the others from a...
Chapter 556, "Five-Year College Entrance Exam, Three-Year Simulation", is the clearest early answer because it turns Jiang Cheng's situation into a concrete plot event. A useful checkpoint is the way the scene starts with After finally settling down, it wasn't long before Jiang Yan started...
Chapter 481, "She Actively Pursued the Boss", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. It opens with Bai Lu ultimately couldn't exchange for 500 points. and closes on Lili, what do you need these items for?" Jiang Li took out one of the....