It could also be that Izuku discovers new friends or a new support system that makes Bakugou seem less important. Maybe he finds people who truly appreciate and encourage him, and compared to them, Bakugou's constant put - downs and competitiveness become tiresome. So he gives up trying to have a positive relationship with Bakugou.
One possible reason could be that Izuku realizes Bakugou's unchanging and hostile attitude. Despite his efforts to be friends or get along, if Bakugou continuously rejects him or is overly aggressive, Izuku might feel it's a lost cause.
It could be due to Bakugou's public shaming of Izuku. If he embarrasses Izuku in front of others too often, Izuku will reach his limit and snap.
Well, the story could take a turn where Izuku becomes more independent. He might start to shine on his own, without the shadow of Bakugou. His confidence could grow as he no longer has to deal with Bakugou's belittling.
One possible reason could be that Izuku has grown up and wants to have a more formal relationship with Bakugou. As they progress in their hero training and development, Izuku might feel that the childhood nickname 'kacchan' no longer suits their new, more mature dynamic.
All Might would probably be one of the first to try to stop Bakugou. As Izuku's mentor and a symbol of justice in the story, he wouldn't tolerate such violence. Another could be their teacher, Aizawa. He's strict and protective of his students, so he'd surely step in.
Bakugou might be initially shocked. He's used to Izuku calling him 'kacchan' for so long that it's become a normal part of their relationship. So, when Izuku stops, it could throw him off balance.
In this kind of fanfiction, it usually shows a build - up of tension between Bakugou and Izuku. Bakugou might have been constantly pushing Izuku's buttons with his aggressive behavior and taunting. This could lead to Izuku finally reaching his breaking point. For example, Bakugou's over - the - top insults about Izuku's abilities or his dreams might be too much for Izuku to bear. And when Izuku snaps, it could lead to a big confrontation between them, which can be a very dramatic and interesting plot point in the fanfiction.
One great 'izuku and fem bakugou fanfiction' is 'A New Bond'. In this story, they are forced to work together on a project at school. Fem Bakugou slowly starts to see Izuku in a new light as they overcome challenges together. It's a really sweet story that shows character growth for both of them.
You can start by looking on Archive of Our Own (AO3). It has a vast collection of fanfiction, and you can easily search for 'izuku and fem bakugou' fanfiction there. The site also has tags and filters to help you narrow down your search based on what you're interested in, like specific genres or ratings.
In this kind of fanfiction, a likely consequence is that it changes the whole dynamic of the story. Their classmates might take sides. Some might side with Izuku out of sympathy, while others might try to understand Bakugou's actions. It could also lead to changes in the school's view on Bakugou, perhaps implementing stricter rules or counseling to prevent such incidents in the future.
Growth is also a major theme. Izuku's act of standing up is usually a sign of his growth, both as a person and as a hero - in - training. It shows that he's not going to be pushed around anymore and is ready to face challenges head - on, which is a big part of his journey in these fanfictions.