Why is Anna Beth upset with Percy for risking his life?

Anna Beth is upset with Percy for risking his life because she cares deeply for him and fears the potential consequences of his reckless actions. She believes that his bravery can sometimes border on foolishness, putting not only himself but also their mission and the safety of their friends in jeopardy. Her concern stems from a protective instinct, as she understands the dangers they face and the stakes involved in their quest. Ultimately, her frustration reflects her love and desire for him to prioritize his own safety.