Complex sentence: A brief marriage marred by the discovery that her husband, Allan Grey, was having a homosexual affair and his subsequent suicide has led Blanche to withdraw into a world in which fantasies and illusions blend seamlessly with reality.
Split into simpler sentences: A brief marriage marred by the discovery that her husband, Allan Grey, was having a homosexual affair. His subsequent suicide has led Blanche to withdraw into a world in which fantasies and illusions blend seamlessly with reality.