One way their relationship could develop uniquely is through a shared goal that has nothing to do with the Jedi - Sith conflict. For example, they could be on a quest to save a planet or a group of people. Along the way, they would have to rely on each other's skills. Ahsoka would see the Sith's determination and resourcefulness, and the Sith would see Ahsoka's compassion and selflessness. This could gradually change their perception of each other and lead to a deeper, more complex relationship.
Their relationship could develop uniquely if they start to exchange knowledge. The Sith could teach Ahsoka about the dark side not as a way to convert her, but to make her understand the full spectrum of the Force. In return, Ahsoka could share her Jedi insights. This exchange would be a very different approach compared to the usual Jedi - Sith enmity. They might find common ground in their views on certain aspects of the Force, like the importance of balance.
She could be developed through her interactions with Sith apprentices. Maybe she tries to redeem one of them, showing her compassion and strong will. This would also show her growth from her Jedi training.
It could develop into a friendship based on mutual understanding. Galen has had a difficult past, being manipulated by the Sith. Ahsoka also has her own traumas from leaving the Jedi Order. They could bond over their shared experiences of feeling like outsiders in a way. They might share stories of their pasts and find common ground, which leads to a deeper connection.
Another way their relationship develops in fanfiction is when Ahsoka is wrongly accused again. Anakin stands by her this time without hesitation. This event cements their relationship as Anakin realizes how much he values her. They then start to train together more privately, sharing their unique insights about the Force, and this makes their connection even deeper.
In many fanfictions, Anakin and Ahsoka's relationship is complex. It's often a mentor - student bond that evolves. Some fanfictions focus on how Anakin's fall to the dark side affects Ahsoka. For example, in some stories, Ahsoka tries to save Anakin from the dark path. Their relationship also has elements of friendship and loyalty that are explored in different ways depending on the author's vision.
One interesting plot twist could be that Ahsoka is forced to team up with a Sith to fight a greater evil. Maybe there's a new, powerful dark side force emerging that threatens both the Jedi and Sith ideals. This alliance would be full of tension as they constantly battle their own natures. Another twist could be that the Sith has a change of heart because of Ahsoka's influence. It's not a common occurrence for a Sith to turn towards the light, but her unwavering belief in the good could start to chip away at the Sith's dark facade.
The relationship could start as a mentorship. Shaak Ti, being an experienced Jedi, could initially see Ahsoka as a young, promising Jedi in need of guidance. Ahsoka, in turn, would respect Shaak Ti's wisdom and skills. As they go on missions together, they would grow to trust each other more deeply, like comrades in arms.
Their relationship could develop as they train together. Ezra would learn more refined Jedi techniques from Ahsoka. This would create a deeper bond of respect and mentorship.
Their relationship could develop further through shared battles. As they fight side by side against the Empire, they learn to trust each other even more. Each battle they survive together deepens their bond.
Their relationship could be explored by having them go on a spiritual journey together. They might meditate in the Force and share their innermost thoughts and feelings, which they've never fully expressed before. This could deepen their bond in a very unique way.
One interesting storyline could be Ahsoka being forced to team up with a Sith to fight a greater evil. Maybe they start off distrusting each other but gradually come to respect one another's skills.