Peter might initially be in a state of shock. He could isolate himself from his friends and the world around him, constantly replaying memories of Aunt May in his head. He may also feel a great sense of guilt, thinking that he could have done more to protect her.
Maybe in the fanfic, Aunt May's death is the catalyst for Peter to take on a more serious and darker approach to fighting crime. He could start to question his no - killing rule more severely. For example, he might face a villain who was directly or indirectly responsible for Aunt May's death and be on the verge of crossing that line.
Peter Parker's character development can be shown through his emotional journey. He may become more withdrawn at first, but then gradually find strength within himself to move forward. For instance, he might start to focus more on helping the less fortunate in Aunt May's memory.
One plot twist could be that Aunt May's death was part of a bigger plan by a villain. Maybe the villain wanted to break Peter and make him more vulnerable. Another could be that Aunt May left behind a secret that changes Peter's view of his family or his powers.
In certain comic arcs, Aunt May does pass away. However, the circumstances and details of her death can vary depending on the specific comic series and storyline.
In non - inappropriate Aunt May fanfiction, she is often portrayed as a strong and loving figure. She is the moral support for Peter Parker. She is shown as a caring aunt who worries about Peter's safety when he is out as Spider - Man.
He could become more withdrawn. Losing Aunt May, who was like a mother to him, would be a huge blow. He might isolate himself from his friends and even from his crime - fighting duties for a while as he deals with his grief.
She might also be proud. Peter is using his powers to help people, and Aunt May, being a kind - hearted person, would likely be proud of him for that. She could start to brag about him to her friends in a very discreet way, of course. And she would probably be more worried about him than ever, constantly thinking about all the risks he takes every time he goes out as Spider - Man.