Their relationship becomes more possessive. In the Dark Side, Anakin's love for Padme could turn into an obsessive need to control her. He might see her as his possession rather than an equal partner.
The relationship loses its innocence. There are no more gentle moments or selfless acts of love. Instead, they are constantly testing each other's loyalty in the context of their new Dark Side allegiances, and any sign of weakness is seen as a threat to their new, dark - powered bond.
It gets more dangerous. They start to plot and scheme together, using their combined influence and power for self - serving purposes. Their relationship, which was once based on love and a hope for a better future, now becomes about power and domination.
Well, at first, they might seem closer as they are now both part of the same 'dark' world. But soon, the dark side's influence of greed and power - hunger would start to drive a wedge between them. Anakin, with his already tumultuous relationship with power, might try to dominate Ahsoka. Ahsoka, having been dragged into the dark side against her will perhaps, would resent Anakin for it. Their relationship would be a volatile mix of shared darkness and individual power struggles.
The fanfic could be set during the Clone Wars. Anakin's dark side starts to emerge due to the stress and manipulation. Padme notices the changes in him. Meanwhile, Luke and Leia are prophesied to be the ones who can save the galaxy from the dark side that Anakin is falling into. It could show how their fates are intertwined even before they are born, with Padme trying to protect the future of her children and Anakin.
One idea could be that Anakin's fall to the Dark Side causes him to try and make Padme a Sith as well. He might use his newfound power to manipulate her, believing that together they could rule the galaxy. For example, he could start by isolating her from her friends and allies in the Jedi Order and the Republic, making her more dependent on him.
Perhaps a fanfic that delves into the time when Anakin was on the cusp of turning to the dark side. Padme could sense the change in him and tries to prevent it with the help of Luke and Leia from the future who somehow travel back in time. This would create a complex web of relationships and a race against time to save Anakin from the dark side.
As Padme is pregnant, Anakin may start to think more about his future and his place in the galaxy. This could lead to deeper conversations between them about their values and what they want for their family. Their relationship will grow as they both adjust to the idea of becoming parents and all the responsibilities that come with it. They'll have to support each other through the physical and emotional changes that Padme is going through, and also deal with the external threats to their family.
Fanfiction usually develops Anakin's character by showing his relationships in a new light. His bond with Palpatine could be shown as more complex, with Palpatine slowly manipulating Anakin over a long period, preying on his weaknesses like his desire for power to save Padmé. This makes his turn seem more gradual and believable.
The relationship between Anakin and Padme in fanfiction can be quite diverse. Some fanfictions might emphasize their love story as a tragic one. Given Anakin's fall to the dark side, their relationship was doomed in many ways. Writers may explore how Padme's love for Anakin was not enough to save him from the allure of the Sith. Others might focus on the happier moments in their relationship, like their secret wedding, and expand on the emotions they felt during those times.
The Jedi Order would be in even more chaos. With Padme's death, there would be a political upheaval as she was an important figure in the Republic. This could lead to the Sith having an even easier time taking over.
Fanfics often explore how Anakin's fear of losing Padme drives his actions. He may see visions of Padme's death and in his desperation to prevent it, he makes choices that lead him further into the dark. His love for her becomes a double - edged sword. It gives him something to fight for, but also causes him to make morally wrong decisions. Writers may show how his relationship with Padme, which was once a source of light, gradually becomes corrupted as he descends into darkness.
In some fanfictions, Ahsoka might save Anakin through the power of their strong bond. She could remind him of their shared memories, the good times they had together, and the Jedi values they once held dear. By appealing to his emotions and the part of him that was still good, she could potentially pull him back from the dark side.