What are the relation between the narrator and holly

The reader is never informed of the name of the narrator and protagonist, whom Holly simple refers to as "Fred", because he looks like her brother. At the time of his friendship with Holly Golightly, he is a young writer struggling to make a name for himself in New York City. The reader learns little of his life apart from his adventures with Holly, which enhances his identity as a private "outsider" who, as Holly relates, "wants awfully to be on the inside staring out." An implied homosexual, the narrator later becomes a literary success and world-wide traveler.