At first, Sasuke might start with small gestures. For instance, he could be more attentive to Sakura's presence, like looking at her more often or listening more closely when she speaks. This could gradually lead to more direct interactions, such as him starting conversations with her instead of the other way around.
As the story progresses, they may start to train together more frequently. During these training sessions, they get to know each other on a deeper level. Sasuke might start to open up about his past and his feelings, which in turn makes Sakura feel closer to him. Their relationship then becomes more than just a one - sided admiration from Sakura's side.
The relationship can start with a moment of vulnerability. For example, if Sakura is in a dangerous situation and Sasuke comes to her rescue. His licking of her (in a non - sexual, affectionate way like licking a wound) can be the first sign of his deeper care for her. This could lead to Sakura realizing that Sasuke's feelings for her have changed, and she starts to open up more to him.
One possible reason could be that Sakura has grown and changed a great deal. Maybe she has become stronger both physically and mentally, and this newfound strength and confidence are what draw Sasuke to her. For example, if she has made significant contributions to the village or has mastered some new and powerful jutsu, Sasuke would start to see her in a new light.
The relationship often becomes more strained. Sasuke's punishment can make Sakura feel resentful at first. But over time, it can also lead to her becoming more independent as she tries to prove herself to him.
In some fanfiction, the secret relationship develops as a result of a common goal. They both want to change the ninja world in some way. Working towards this goal together, they find themselves relying on each other more and more. They start to communicate on a deeper level, and this leads to romantic feelings. However, they keep it hidden because they know that their relationship could be a distraction to their comrades or a target for their enemies. They have to be careful, so they only show their true relationship when they are completely alone.
Often in fanfiction, the relationship develops as they train together. They learn new skills from each other. Naruto teaches Sasuke about the power of friendship and determination, Sasuke shows Naruto and Sakura some advanced Uchiha techniques. Sakura, with her medical knowledge, helps them both when they get injured during training. This mutual learning and support strengthen their bond.
She might be indifferent. Sakura could simply act like Sasuke is just another acquaintance. When she sees him, she doesn't show any special emotions, just a casual nod or a brief greeting.
Traveling gives them a chance to be away from the normal distractions of their home. They can have long conversations while on the road or during breaks. Sasuke could share his dreams of a peaceful future for the ninja world, and Sakura could talk about her hopes for the medical advancements in their village. As they communicate more, they start to understand each other better. And as they face difficulties together, like bad weather or bandit attacks, they rely on each other more, which gradually turns into a deeper love.
Their relationship could become stronger. With a son, they have a new bond that ties them together even more. They might communicate more often and share their parenting experiences. They could also rely on each other more in terms of protecting their family.
Their relationship can be shown as one filled with deep love and care. Sasuke, who has always been a bit aloof, becomes much more tender and attentive towards Sakura during her pregnancy. He might start doing small things like getting her favorite foods or just sitting with her and talking about their future as a family.
The relationship can also be developed through their interactions with other characters. For instance, if they have a child, how they both interact with the child and how their parenting styles differ and blend. Also, how they interact with their friends like Naruto and Hinata. Maybe they have double dates or group outings. All these interactions can show different aspects of their relationship and how it grows and evolves over time.