Why did Juli get into a fight with Shelly Stalls?

Juli got into a fight with Shelly Stalls primarily due to a conflict over their differing perspectives and values. Shelly's bullying behavior, particularly towards Juli and her friends, escalated tensions, leading to a confrontation. This fight highlighted the broader themes of friendship, loyalty, and standing up against injustice. Ultimately, it served as a turning point in Juli's character development and her resolve to defend herself and her beliefs.