Complex sentence: He meets with a famous poet, Nicholas Greene, whom he joyfully entertains, but who criticises Orlando's writing, later making Orlando feel betrayed when he finds himself made the foolishly depicted subject of one of Greene's subsequent works.
Split into simpler sentences: He meets with a famous poet, Nicholas Greene, whom he joyfully entertains, but who criticises Orlando's writing. Later Orlando feels betrayed when he learns that he is the foolishly depicted subject of one of Greene's subsequent works.