A complication adds to the problem of the story. The stories problem is the conflict. Many times there is more than one complication. When labeling a plot line for a story, the complications can be found in the rising action. This takes place between the exposition and the climax. The exposition of a story introduces the characters, setting, and conflict. The climax is the pivotal point in the conflict. The character can never return to the way things were when the story started out. Something or someone has been irrevocably changed.
The complication affects the story because It intensifies the conflict.
Explanation:
Conflict is an elemental part of stories since it leads to the climax of the story and makes the characters go through several events, then this already represents adversity in their lives, and when a story has a complication, this works as a magnifier for the opposite force that was already acting against the main characters o the ones that have to deal with this new conflict.
By giving details on a character's personality, the author helps readers understand that character more accurately. ... The theme is probably "Treat others as you would like to be treated," or something similar (Assuming Jerry is the main character/protagonist).