She could be developed by showing her dealing with more complex emotions. For instance, if she starts to feel jealous of Spider - Man's superhero life taking up so much of his time. This would add depth to her character as she struggles between her love for him and her own needs.
One idea could be Mary Jane starting her own investigative journalism project related to Spider - Man's enemies. This would put her in danger and force Spider - Man to protect her while also trying to keep his identity a secret from her new inquiries.
In some Spider - Man fanfictions, Mary Jane being pregnant can add a whole new layer of drama. It could mean that Spider - Man has to balance his superhero duties with being a soon - to - be father. Maybe he'll worry about protecting his family more than ever, and there could be new villains who target his unborn child or Mary Jane to get to him.
In most Spider - Man novels, Mary Jane is indeed present. She's not just a love interest but also a strong character in her own right. For example, in some novels, she has to deal with the knowledge of Peter's double life as Spider - Man. This creates interesting story arcs as she struggles with the danger that comes with loving a superhero, and also has her own life and goals that she is trying to achieve. Her presence in the novels helps to humanize Peter Parker and makes the story more than just about a superhero's adventures.
Mary Jane's age varies depending on the specific comic storyline and continuity. But typically, she's depicted as being in her late teens or early twenties.
In novels,'mary jane' can refer to a female character's name or might be a specific term or nickname within a particular story context. But it could also be a code or symbol with a hidden meaning depending on the author's imagination.