Maybe Tony took away some of Peter's Spider - Man gear without a good explanation. Peter worked hard to get where he is with his suit and abilities. If Tony just confiscates it for what Peter sees as no valid reason, he would surely be angry. After all, the suit is an important part of how Peter operates as Spider - Man.
It could be that Tony made a decision that affected Peter's personal life without consulting him. For example, if Tony somehow arranged for Peter to be transferred to a different school or something similar for'safety reasons' but without considering Peter's feelings and his existing relationships at his old school. This would make Peter mad as it shows a lack of respect for his autonomy.
Another aspect could be competition. Suppose there's a new superhero in town and Tony seems more interested in mentoring this new person than paying attention to Peter. Peter would feel neglected and mad at Tony for not valuing him as much as he thought. It's a common theme in relationships where one person feels sidelined.
A fanfiction might explore Peter's internal struggle with his double life as Spider - Man and his relationship with MJ. He might worry that his superhero duties will put MJ in danger. MJ, on the other hand, is determined to be part of his life no matter what. They have an argument about it, but in the end, they find a way to make it work.
One possible fanfiction could be about Peter and MJ's first date. Maybe Peter tries to keep his Spider - Man identity a secret during the date, but little things keep giving it away. MJ, being the observant person she is, starts to suspect something but doesn't say anything at first.
There are many fanfictions on this topic. In some, Tony Stark might be watching Peter Parker's growth as Spider - Man during the events of 'Homecoming' with a sense of pride, like a mentor observing his protege. He could be making mental notes about how Peter handles different situations.
In some fanfictions, Peter might be hurt while trying to protect civilians. He may put himself in the line of fire to save others, and in the process, get seriously injured. This showcases his selfless nature but also the risks he takes as Spider - Man.
A fanfiction could also explore a friendship between Peter and Wanda. Since Peter is still in high school and new to the superhero world in Spider - Man Homecoming, Wanda could act as a sort of mentor. She could give him advice on how to balance his normal life with his superhero duties. They might also have some fun moments together, like when Peter tries to show Wanda some of the cool things he can do with his web - shooters and Wanda responds with some amazing magic tricks of her own.
Perhaps in the fanfiction, there is a plot where a powerful enemy is targeting young superheroes. Peter and Wanda find out about this and decide to form an alliance. They start training together to improve their skills. Peter learns how to be more strategic from Wanda, and Wanda learns about Peter's quick - thinking and adaptability. Their combined efforts lead to some epic battles against the enemy.
In some fanfictions, Peter could be hurt physically during battles. For example, he might take more severe hits from villains than in the movie. This could be because the writers want to explore his vulnerability and the limits of his powers.
In many Peter and Liz fanfictions in the Spider - Man Homecoming universe, their relationship often takes on different twists. Some fanfictions might focus on the unspoken feelings they had in the movie that never fully developed. For example, a fanfiction could explore what would have happened if Liz had found out about Peter being Spider - Man earlier. Maybe she would have been more accepting and they could have fought crime together in a way.
Well, often in 'Spider - Man: Homecoming' fanfiction, Peter's Spider - Sense is used in creative ways. It could be tied to his growing up process. As he matures, he learns to better control and interpret his Spider - Sense. Maybe it starts to work differently around his friends, like it gives a softer signal when they playfully surprise him compared to a full - on danger alert.