In some versions, Astoria is often depicted as more of a free spirit. She may introduce Draco to a new way of life that he finds exciting. Her charm and grace could also be factors. She might be the kind of person who doesn't put pressure on Draco like Hermione might have, in terms of his past actions or family history. This lack of judgment makes Draco feel more comfortable around her.
She could also get angry. Hermione is a passionate person, and being left for someone else would surely stir up her emotions. She might lash out at Draco or even Astoria, especially if she feels that Astoria has somehow manipulated the situation. However, she is also a rational person, so after the initial outburst, she might start to analyze what went wrong in their relationship.
One possible reason for Draco leaving pregnant Hermione in fanfiction could be due to the long - standing enmity between their houses in the wizarding world. Maybe Draco is afraid of the social and family implications of being associated with a Gryffindor, especially when she's pregnant. He might also be pressured by his pure - blood family values which initially made him view Hermione as an outsider.
Hermione could become withdrawn. She might isolate herself from her friends for a while, spending her time in the library trying to make sense of it all. She might also feel a sense of betrayal, especially if they had some sort of understanding or relationship developing.
It can make Hermione seem more rebellious. In canon, she's with Ron, so in this fanfiction scenario, her leaving Ron for Draco shows that she's willing to break away from the expected and follow her own heart, even if it means going against her friends' expectations.
Hermione is a strong - willed character. At first, she might be in denial about the situation. But as time passes, she likely becomes determined to raise the child on her own. She draws on her inner strength, which she has shown throughout the Harry Potter series in facing difficult challenges.
Often, in such fanfictions, there are plots where Hermione tries to keep the pregnancy a secret from the wizarding community at large. She might fear the reaction from both the Gryffindor and Slytherin sides. There could also be a storyline where Draco, despite leaving, has second thoughts later in life and tries to come back into Hermione's and the child's life, creating a lot of emotional turmoil.
One possible heartbreaking scene could be when Draco leaves Hermione without any explanation. It would leave Hermione confused and hurt. Maybe they had shared some special moments together, like a secret midnight conversation under the stars, and then suddenly, Draco is gone. It shatters the hope Hermione might have had for a deeper relationship with him.
I also like 'The Malfoy Family Ties'. This fanfiction gives a detailed look into the daily lives of the Malfoy family. Draco is shown as a more complex character, trying to be a good father. Astoria is depicted as a loving mother, and Scorpius is just an adorable child caught in the middle of the family's growth and change. It's a great exploration of their family dynamics.
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.