Maybe the hero realizes that the other person has qualities he values more or shares a deeper connection with.
Maybe it's to add drama and tension to the story. It makes the plot more complex and keeps readers engaged.
It could be that the hero is so focused on other goals, like achieving a great career or avenging a wrong, that he doesn't have time for the heroine. He might think that romance would be a distraction from what he really wants to do. For example, if he's on a mission to save his family's honor, he might see a relationship as something that could get in the way of his pursuit of justice.
Maybe she has had some bad experiences related to so - called heroes in real life, which makes her cynical about the idealized heroes in romance novels.
Maybe it's because of some misunderstandings or past conflicts. Sometimes, family members have their own biases and preconceived notions that cause them to dislike the heroine without a good reason.
Sometimes, it's a plot device to create conflict and tension. The mistreatment might lead to character growth and a more meaningful resolution in the story. Maybe the hero has misperceptions or misunderstandings that cause his behavior.
Often, it could be due to a lack of communication or understanding between the two. Maybe the hero is used to having things his way and doesn't realize how his actions affect the heroine.
It could be because the hero is immediately struck by the heroine's unique charm or personality.
You can start by thinking about the character's traits. If he's strong and brave, a name like Max might work. If he's more of a brooding type, perhaps Damien. Also, consider the time period of your story. For a historical romance, names like Edmund or Henry would be fitting.
Often, the hero being mean at first builds up to a big transformation and a deeper connection later. It could be a plot device to make their eventual love more meaningful.
The reason why Crusoe chose to move to another place to live in the first chapter of Crusoe was because she found that the local weather was very bad and it often rained, making her residence very wet and uncomfortable. In order to protect her and her crew's health, she decided to leave the area and find a new place to live. She chose a dry and sunny place to build a small house and began to live there.