Well, it varies. There are fans who actually like the drama it creates. They enjoy seeing the complex relationships and how the characters handle such a difficult situation. But on the other hand, many fans who are die - hard supporters of Hermione might be very critical of Draco and Astoria. They might write their own versions of the story where Hermione gets revenge or finds true love elsewhere.
However, there are also fans who might be very opposed to it. Since it goes against the original character relationships in the books, they might feel that it's disrespectful to the canon. They prefer to stick to the more traditional pairings and storylines.
Some fans might be really shocked and disappointed. Since Edward and Bella are a very iconic couple in the Twilight series, seeing Edward cheat goes against the image many fans have of him. They may feel that it's a betrayal of the original story's concept of their love.
Often, Harry reacts with anger. He's not one to take being cheated on lightly, whether it's in a relationship or in a competition. His Gryffindor pride kicks in, and he'll want to confront Draco immediately.
Well, it can completely change the direction of the story. It might introduce a lot of drama and conflict. Hermione could be heartbroken and seek revenge or closure. It could also lead to a rift in the wizarding community if it becomes public knowledge. And it might make the readers view Draco in a more negative light, as cheating is generally considered a very unethical behavior in any relationship.
Well, fans' reactions vary. Some are very enthusiastic as they enjoy seeing the characters in new romantic scenarios. They might comment on how the fanfiction writers have developed the relationship in an interesting way. However, there are also fans who are more traditional and prefer the original relationships in the books, so they might be a bit more critical of these fanfictions. But overall, it's a great way for fans to explore different 'what - if' situations regarding the characters.
Some fans are really excited about them. They enjoy seeing an alternative take on the relationships in the Harry Potter universe. It gives a new dimension to the characters they love.
The reaction among fans would be quite mixed. Some die - hard fans of the original series would be appalled as they have a clear image of ChiChi and Goku's relationship. They would see this type of fanfiction as a perversion of the original concept. On the other hand, there are those who are more open - minded and might see it as an interesting, if not controversial, exploration of the characters. But overall, the negative reactions would probably outweigh the positive ones.
Hermione might be initially very hurt and angry. She's a proud and strong character. She could cut Draco off completely and refuse to have any communication with him. When Draco shows regret, she may be skeptical at first. After all, he has broken her trust. But deep down, she might still have some feelings for him, so she could be in a state of internal conflict.
There are other fans who are interested in exploring different storylines. They see it as a creative way to expand the Twilight universe. They might enjoy seeing how the characters would react in such a difficult situation, even if it's not in line with the original story.
In some fanfictions, it might start with Draco feeling trapped in his marriage. Maybe he has unresolved issues from his past or he meets someone new who he wrongly believes understands him better than Hermione. However, this is a very unfaithful and often disliked concept as Draco and Hermione are from different Hogwarts houses and have a complex relationship in the original series. Cheating goes against the loyalty and respect that should be in a marriage.