Well, in this sort of fanfiction, Ginny's motive could be a complex web of emotions. She might be under the influence of a dark spell. Or perhaps she has been misinformed about Harry's role and believes that by giving him to Voldemort, she's actually saving the wizarding world. It could also be a case of extreme jealousy, if the writer wants to explore a really twisted version of her character.
Yes, there might be some. However, it's a rather dark and unorthodox take on the Harry Potter universe. Some fanfictions like this explore extreme 'what - if' scenarios. But they often deviate greatly from the original spirit of the series.
Another plotline might be their family life. They could be shown starting a family early, and dealing with the joys and challenges of raising children in the wizarding world. For example, teaching their kids magic at home, or dealing with the chaos of a family full of young wizards.
One possible motive could be to taunt Harry. Voldemort might see it as a way to show his superiority and to get under Harry's skin. It could be a form of psychological warfare.
Yes, it is possible. By creating a complex backstory such as a powerful curse that makes them act against their nature, or a situation where they believe Voldemort is the lesser of two evils. For example, if the wizarding world has become corrupt in a different way than Voldemort's regime.
One possible motive could be that Harry is under the influence of a dark spell or curse that makes him lose control of his actions. In some fanfiction scenarios, dark magic can overpower a character's true nature.
One possible motive could be to create drama. Writers might think that by introducing such a controversial plot, they can attract more readers who are interested in seeing how the story would unfold in this unexpected direction.
Well, it could be out of jealousy. Maybe Dean feels like he's losing Ginny to someone else and in a moment of madness, decides to kidnap her. But this is all just speculation within the wild world of fanfiction.
One possible motive could be that Harry is tired of the never - ending battle. He might feel that his sacrifice would end the war once and for all and save his friends and the wizarding world. It's a selfless act in a way, as he is willing to give up his own life for the greater good.
Maybe Ginny was jealous. If she saw Harry getting too friendly with another girl, in a fit of jealousy, she might spike his drink to make him a bit more pliable so she could have his full attention.
Power. Voldemort might see Snape as a means to gain more power. Snape is highly intelligent and skilled in the Dark Arts. By caring for him, Voldemort could be ensuring that Snape remains loyal and continues to use his skills for Voldemort's benefit.