Final answer:
In Frankenstein, Victor angers the monster by reacting with horror and disgust towards him. The monster promises to be with Victor on his wedding night as a form of revenge.
Step-by-step explanation:
In Mary Shelley's novel Frankenstein, when the monster finds Victor, Victor's initial reaction is one of horror and disgust towards his creation. This angers the monster because he craves companionship and acceptance. In return, the monster promises Victor that he will be with him on his wedding night, implying a threat to harm Victor's loved ones. Feeling rejected by his creator, the monster's grief turns to rage, and he promises to seek vengeance on Victor, declaring a form of war against him. This tumultuous relationship is central to the plot of Mary Shelley's Frankenstein, illustrating the consequences of unchecked ambition and the ethical responsibilities of creators towards their creations.