There are a few types of logical fallacies. A logical fallacy is an error in reasoning that makes your argument less effective and you will not be very convincing.
Explanation:
formal/informal
Formal - problem with the structure of your argument
Informal - problem with the information that you are "saying" which might actually be incorrect or misleading to others.
You can that aunt marry is someone who is very nervous and cautious by how the author used the word shrieked and how you can infer she was scared by the tone of the story
