In Chapter 25 of "Anne of Green Gables," titled "Shirley Goes," the story explores Anne's emotions as she faces the departure of her close friend, Diana Barry. The chapter highlights the depth of Anne's feelings and the bond she shares with Diana, revealing how their friendship has shaped her experiences in Avonlea.

As Anne grapples with this change, she reflects on the importance of cherishing friendships and the impact of loss. The narrative emphasizes themes of growth, nostalgia, and the bittersweet nature of change, showcasing Montgomery's ability to capture the intricacies of youthful relationships.