There are several possible reasons. Firstly, a sense of being controlled. If Edward is constantly making decisions for her or restricting her actions, Bella would want to break free. Secondly, self - preservation. If she realizes that the relationship is putting her in more danger than she can handle, she'll run. Thirdly, a change in her feelings. Maybe she falls out of love with Edward or realizes she was never truly in love, but rather in some sort of infatuation. So, she runs away to sort out her emotions and her life.
Another reason could be that she wants to explore the world on her own terms. In the fanfiction, Mirabel may be tired of always being in the family's protective bubble. She desires to see what lies beyond the village and the mountains, so she runs away to start her own adventure.
Another reason could be to regain her self - esteem. In an abusive relationship, the abuser often tries to break down the victim's self - confidence. By running away, Bella is taking a step towards reclaiming her sense of self - worth. She can start to focus on her own needs and desires again.
One popular 'bella runs away from edward fanfiction' is 'The Runaway Bride'. In this story, Bella decides to run away due to feeling suffocated in her relationship with Edward. Another one could be 'Away from the Vampire'. It shows Bella's journey as she tries to escape Edward's over - protective nature. There's also 'Fleeing Edward' which focuses on Bella's inner turmoil that leads her to run.
One possible reason could be fear. Minato is a very powerful shinobi, and Naruto might be scared of him for some reason. Maybe he has heard stories about Minato that made him afraid.
Well, in many fanfictions, it could be that she has some sort of information that the mob doesn't want her to have. Maybe she overheard something or found out a secret that could put the mob in a bad light. So, to avoid being silenced or worse, she runs away. For example, she could have learned about their illegal activities and they are after her to stop her from revealing it.
One common theme is self - discovery. When Bella runs away, she often has time alone to figure out who she really is without the influence of her usual surroundings. For example, she might realize she has a passion for art or music that she never explored before.
She may be running away to protect the baby. Maybe she fears that someone or something in her current environment poses a threat to the unborn child. It could also be that she wants to start anew, away from all the complications and expectations in her present life, so she decides to run away with the hope of building a better future for herself and her baby.
One possible reason could be fear. Rin might be afraid of his own powers and the potential harm they could cause to Yukio. Since he cares about Yukio, he may choose to run away to protect him.
Perhaps he is running away from danger in Konoha. There could be a threat that he believes he can't face directly in the village, and he thinks Whirlpool might offer some sort of sanctuary or a way to become stronger in relative safety.
Maybe he's running away from some kind of danger or threat in his home village. There could be a group or an individual after him, and he believes that Kumo would be a safer place. It could also be related to some political unrest in Konoha that makes him feel like he has to leave, and Kumo seems like a viable option.