In this fanfiction, Percy's character would go through a significant transformation. Initially, he would be resistant and confused about being Hera's husband. But as he gets more involved in the divine affairs, he would start to understand the complex nature of the gods and their relationships. He would become more empathetic towards Hera, despite her flaws. His sense of justice would expand beyond the demigod world. He would also become more self - assured in his abilities as he has to hold his own among the powerful Olympian gods. His relationships with other characters, like his friends at Camp Half - Blood, would change as they now see him in a different light. He would have to constantly balance his old identity as a demigod hero and his new identity as Hera's husband, which would make him more complex and multi - faceted as a character.
Percy would likely become more diplomatic. As Hera's husband, he'd have to deal with all kinds of divine politics, so he'd learn to be more tactful in his words and actions.