The story could develop in a very dark way. Without Harry's leadership, the Order of the Phoenix might struggle. The Dementors might become more powerful or bolder. And Hogwarts would be in a state of mourning.
After Harry is kissed by a Dementor in fanfic, the story might take a turn towards mystery. His friends could start investigating how to get his soul back. There could be new characters introduced who claim to have a solution. The wizarding community as a whole would be in shock and confusion.
In a fanfic where Harry is kissed by a Dementor, he would likely lose his soul. This is because the Dementor's kiss sucks out a person's soul. It would be a very dark turn for the story. His friends would probably be devastated and the fight against Voldemort would take a huge hit as Harry was seen as a key figure in that battle.
His character might become more complex. He could have a darker side that he has to struggle with. For example, he may be more withdrawn at times due to the dementor's influence.
They could become even closer friends. After going through the war together, they have a deep bond. Maybe they start to rely on each other more than ever, sharing every little detail of their lives.
In some cases, the story might focus on Hermione's journey after leaving. She could end up in a new and strange part of the wizarding world, meet different characters, and learn new magic. Meanwhile, Harry might be on a quest to find her and in the process, uncover secrets about the wizarding world that they never knew before. This can lead to a reunion later on, but with both of them changed by their experiences.
Well, in the fanfic world, the author might have given Harry the ability to use Godric's sword against dementors. Maybe the sword has some special enchantment in this story that makes it effective against the soul - sucking dementors.
The slap could also be a turning point in their relationship. It might make Percy more aware of Annabeth's feelings and boundaries. He could start to be more careful with his actions and words around her. On Annabeth's side, she might feel a bit guilty after the slap and try to make amends in her own way, like by doing something nice for Percy that she knows he'll appreciate.
It could start with a simple conversation in the library. Daphne might be reading a book on dark magic defenses and Harry asks her about it. From there, they start to exchange knowledge and stories. As they learn more about each other's pasts and dreams, their relationship blossoms into a deep friendship or even something more romantic.
In the fanfic, after killing the dementor with Godric's sword, Harry could face some political consequences. The Ministry of Magic might be worried about this new method of dealing with dementors. They could either try to control Harry or study the sword. On a personal level, Harry might start to feel a greater sense of responsibility. He has proven that he can break the traditional boundaries of magic, and this could lead to him being more involved in the fight against the dark forces in the wizarding world. He may also face some opposition from those who believe in the old ways of handling dementors and don't want Harry to disrupt the status quo.
If Harry Potter was kissed by dementors in fanfiction, the whole story would take a different path. Since Harry is the central character, his absence due to the Dementor's Kiss would mean that the prophecy related to him would seem unfulfillable. Hermione and Ron would likely become the main protagonists, but they would be facing a much more difficult situation without Harry's unique abilities and connection to Voldemort. Also, Hogwarts itself might lose its hope as Harry was seen as a symbol of hope against the dark forces.
It could develop very smoothly. They already have a strong foundation of love, so when they meet, they just pick up where they left off and become even closer.