How does Satan’s Diary develop the theme of Love and Betrayal?

Satan’s Diary by Leonid Andreyev develops Love and Betrayal across the chapters the companion marks for this theme.

Satan's infatuation with Maria, who is portrayed as a Madonna-like figure, leads to his emotional vulnerability and ultimate betrayal by both her and her father Magnus, demonstrating how love can be exploited for manipulation and ruin.

Magnus reveals Maria's love for Satan, complicating his emotional state and hinting at potential betrayal.

Satan's love for Maria is intertwined with jealousy and suspicion of Magnus's actions.