Sometimes, Harry might use the rejection as motivation. He could focus more on his training or other important tasks at hand, like fighting against the Dark forces. He realizes that he has bigger things to worry about than a failed romantic pursuit, and this rejection could fuel his determination to prove himself.
One possible reason could be differences in their personalities. Harry is often portrayed as more down - to - earth and Fleur as more haughty in the books. In fanfiction, this might be exaggerated, causing her to reject him. Maybe she doesn't like his fame either, as Harry is 'the Boy Who Lived' and always in the spotlight, which she might find tiresome.
At first, Harry would likely be shocked and angry. He's used to being in dangerous situations, but being kidnapped by Fleur, someone he thought was an ally, would be a big betrayal. He'd probably try to fight back immediately, using his magic if he could.
Peter may initially be angry. He might feel that Maryjane didn't give him a fair chance or that she misjudged him. However, as time passes, he could come to accept the rejection and try to move on, focusing on his own life and other relationships.
He might become withdrawn. Harry has been through a lot in his life, and being heartbroken by Fleur could make him retreat into himself. He may avoid his friends and isolate in his dormitory at Hogwarts.
He might be initially heartbroken. Harry has deep feelings for Hermione, so the rejection could come as a shock. He could withdraw into himself for a while, feeling sad and confused about why she doesn't feel the same way.
He might be initially heartbroken. Harry has always been a bit of an emotional person, so he could go into a state of depression for a while. He might isolate himself from his friends and focus only on his studies or fighting against the dark forces, using it as a way to distract himself from the pain of the rejection.
Perhaps he tries to convince her. Harry is a determined person. He might think that Hermione just needs more time or that he didn't present his case well enough. So, he could start listing all the reasons why they would be good together, from their shared history to their mutual understanding of the wizarding world. But if Hermione remains firm in her decision, he may finally have to accept the rejection and move on.
In the fanfic, Harry could have a range of reactions. At first, he might be in denial, thinking that Hermione is just joking or that she will change her mind. Then, when he realizes it's for real, he could get angry, feeling like he's been unfairly judged or rejected. However, over time, he may come to accept it and focus on other aspects of his life, like his fight against the dark forces or his relationships with other friends.
She would probably be very angry. Hermione is known for her strong will and intelligence. Being restrained against her will would likely make her furious and she'd start shouting at Fleur, demanding an explanation.
Hermione would probably be a bit skeptical at first. She might worry that Harry is rushing into things. But once she sees how happy they are, she would be supportive. Ron, on the other hand, would be more accepting from the start, especially if there are good feasts at the wedding.