Final answer:
The student's question relates to a literary work studied in English, specifically during High School, where detailed analysis of novel scenes and character interactions is common.
Step-by-step explanation:
The context of the question pertains to a scene in a literary work, indicating that the subject is English. Moreover, the scenario described is reflective of a social visit among characters from a novel, which is a common element in English literature analysis.
Based on this and the complexity of the narratives implied, we can deduce that the grade level is likely High School, as this is when students often engage in deeper studies of literature, such as those by F. Scott Fitzgerald or Henry James.
The subject of the question is English because the question is asking about a specific scene or dialogue from a literary work.
The question is referring to a man named Sloane and the girl he's with who stop by to visit Gatsby's place. This scene is from F. Scott Fitzgerald's novel 'The Great Gatsby' and falls under the subject of English, specifically literature studies.