It could have a huge impact. Their early meeting might make them more trusting of each other in the future. They'd have a deeper understanding of each other's origins and what made them who they are. For instance, if they faced a common enemy as children, they'd be more likely to team up against that same foe when they're older.
The confession could also lead to new team - ups. Maybe they start to work together more closely on missions, combining Batman's detective skills with Wonder Woman's combat and diplomatic abilities. This could result in a more efficient way of handling threats in the DC Universe. It could also open up new storylines where they have to face enemies who target their relationship specifically.
She could be devastated. Wonder Woman might go into a period of mourning, isolating herself from others as she grapples with the loss. She was used to having Batman as an ally, and his death would leave a big hole in her life.
It might also inspire new heroes to emerge. Seeing Batman and Wonder Woman injured could make some ordinary people realize the importance of having heroes. They could then take it upon themselves to train and become new protectors of the DC Universe, adding fresh blood to the superhero community.
One possible fanfiction could start with Batman being on a mission in Gotham when he detects some strange energy. Wonder Woman, sensing the same from her Amazonian home, decides to investigate. Their paths cross in a dark alley. Batman is initially suspicious of this powerful, unknown woman, but Wonder Woman is more open and curious. They exchange some tense words as they both try to figure out the other's intentions.
If they form a family, it could lead to a new generation of heroes. This new generation would have a different perspective on justice. They might be more open to combining different methods, like Batman's technology - based approach and Wonder Woman's more traditional combat skills. This could also cause some villains to change their strategies, as they now have to deal with a stronger, more united front from the heroes.
In other cases, it could develop through a series of chance encounters. Like, they keep running into each other in normal, non - superhero situations. This makes them see each other in a different light, not just as fellow heroes. They start to have conversations about their personal lives, and slowly, the relationship blossoms. And as they get closer, they face challenges like any couple would, such as differences in opinion on how to handle certain villains or how much to involve themselves in the world's affairs.
Maybe she just doesn't like how some fanfictions distort the characters or their relationships. Fanfictions can sometimes take wild liberties and she might not be okay with the way Batman is portrayed in some of them.
Well, it could be that Batman is so focused on his own mission in Gotham. He has his own rogues' gallery to deal with and his own way of doing things. Wonder Woman comes from a different world, literally. Her Amazonian background and her role as a diplomat might be too much of a distraction for Batman in fanfic, so he avoids her.
At first, it might be a bit rocky. Batman is used to working alone and being in control, and Wonder Woman is a powerful and independent hero. But as they face challenges together, they would start to respect each other's abilities. They could develop a friendship based on mutual admiration for their different skills.
After the proposal, their relationship would likely become more public. They would no longer be just comrades in arms but an engaged couple. Their interactions would be more affectionate and they would start planning a future together.