What is the verbal dramatic and situational irony in the fall of the house of usher?

In "The Fall of the House of Usher," verbal irony is evident when Roderick Usher expresses a desire for companionship while simultaneously pushing away his friend, creating a contradiction between his Words and actions. Dramatic irony occurs as the reader understands the true nature of Madeline's fate before Roderick does, intensifying the sense of impending doom. Situational irony is highlighted in the story's conclusion, where the physical collapse of the Usher mansion mirrors the family's decline, culminating in the literal fall of both the house and its inhabitants.