Final answer:
The details necessary to answer the student's question about Lily's anger towards Rosaleen are not provided in the given excerpts. References to the characters and context are required to provide an accurate answer.
Step-by-step explanation:
The student's question seems to pertain to a conflict between two characters named Lily and Rosaleen within a novel, which suggests the subject matter deals with an analysis of English literature. Unfortunately, the provided excerpts do not directly contain characters with these names or the specific situation in question. It is best to look back at Chapter 2 of the novel that the student is referencing in the context of their homework to find the specific circumstances under which Lily is angry with Rosaleen. Each extract discussed varies in theme and characters; none directly address the student's question regarding Lily's rationale for being upset with Rosaleen. Based on the excerpts given, we can infer that emotions like jealousy, fear, and a lack of communication are recurring themes, which could be factors in Lily's anger towards Rosaleen if those themes are present in their story.