James might be shocked at first. He could then feel a sense of protectiveness towards Severus. Maybe he starts to see Severus in a new light and tries to find ways to help him, like keeping an eye on those who abuse Severus.
After James discovers Severus' abuse, Severus may experience a range of emotions. He might be initially reluctant to accept James' help, given their history of animosity. But if he does accept, it could lead to a transformation in his self - esteem. He could start to believe that he is worthy of protection and care. In terms of his relationships at school, it could either improve his standing if the other students follow James' lead in protecting him, or it could make things more complicated if there are those who oppose James' new - found support for Severus. His academic performance might also be affected. If he feels more secure, he could focus better on his studies, but if he is dealing with the fallout of the abuse being known, it could be a distraction.
One common plotline is Severus becoming Harry's protector. He may start to train Harry privately to make him stronger. Another could be Severus confronting Harry's abusers, whether it's the Dursleys or others in the wizarding world.
Severus might initially be shocked. He could then feel a sense of protectiveness over Harry. He might start to secretly look out for Harry, like making sure he has enough to eat at Hogwarts and is safe from further harm.
Well, James is a loyal friend. So, when he discovers Sirius is abused, he would most probably drop everything else he is doing to focus on Sirius. He'd be angry, not just at the abusers but also at himself for not realizing it sooner. He'd make sure Sirius knew that he wasn't alone and that he had someone who would always be there for him. James might also encourage Sirius to learn self - defense magic more intensively so that he could protect himself in case the abusers tried to harm him again.
The abuser could face magical justice. In the wizarding world, there are probably spells or enchantments that can be used to punish wrongdoers. James Potter might use his connections to ensure the abuser is dealt with severely, like being sent to Azkaban or having their magic restricted.
He might be filled with rage. James Potter was a loving father figure in his own right. So, when he finds out about Harry's abuse, he could immediately seek to confront the abuser. He would want to protect Harry at all costs and might use his magical skills to ensure Harry's safety.
The relationship may become more complicated. Severus might struggle with his own emotions. He might feel an urge to protect Harry from this fictional abuse, but at the same time, he has to deal with his long - standing animosity towards Harry. So, it could lead to a very strange and tense dynamic between them, with Severus trying to balance his new - found protectiveness and his old grudges.
Severus might be initially shocked. He could feel a strange sense of protectiveness over Harry, despite their past differences. He might try to find out who wrote the fan fiction and why they depicted such a disturbing scenario.
Yes, there are quite a few. Some fanfiction sites like Archive of Our Own have a variety of such stories. You can search for tags like 'Harry Potter', 'Severus Snape', 'James Potter' combined with family or relationship tags to find relevant fanfictions.