Often, it starts with a reconnection. Maybe Sasuke comes back to the village and Sakura is the first one he really talks to. Their relationship develops as they start to trust each other more. Sasuke might open up about his travels and Sakura shares her experiences in the village. This sharing of experiences brings them closer together.
Well, usually in such a fanfiction, their relationship might start with Sasuke being a patient. Sakura, as his doctor, would be professional at first. But as time goes on, they might start to share more personal thoughts and feelings during Sasuke's treatment. Maybe Sasuke starts to see Sakura in a new light, not just as a doctor but as someone he can trust and rely on, which gradually deepens their relationship.
In the hospital setting, Sasuke might initially be his aloof self. But as Sakura takes care of him or they face challenges together, he could start to open up more. For example, if Sakura is overworked, Sasuke might offer a helping hand in small ways, like getting her coffee. This would show his growing affection for her.
Their relationship could develop as Sakura becomes more protective of Sasuke due to the curse. Sasuke, in his vulnerable state, starts to see Sakura in a new light. He realizes how much she truly cares for 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.
In these fanfictions, their relationship often develops in new and interesting ways. At first, they might be confused and a bit at odds due to the time travel situation. But as they face challenges together, like dealing with changes in the timeline or fighting new enemies, they start to rely on each other more. Their respect for each other grows, and they may even start to see each other in a different light. For example, Sasuke might notice Sakura's strength and intelligence more than he did before, and Sakura might see a more vulnerable side of Sasuke.
In these fanfictions, their relationship often starts with an element of mystery. For example, Sasuke might be hiding his vampire identity from Sakura at first. As Sakura gradually discovers the truth, she has to decide whether to accept him or not. This creates a lot of tension and drama in their relationship. Eventually, if she accepts him, they start to build a deeper emotional connection, often based on mutual understanding and a shared sense of adventure as they navigate the vampire - human world divide.
Well, often it starts rocky. Sasuke may be resistant to the idea of an arranged marriage, so he might be distant at first. But Sakura, being the determined one, tries to break the ice. She might start by cooking for him or taking an interest in his hobbies. As she does these things, Sasuke slowly warms up to her. For instance, if Sasuke likes to read about ninja history, Sakura could bring him new books on the subject.
Sasuke might become more protective. Since Sakura is a princess, he feels a stronger sense of duty to keep her safe, which changes his usually aloof demeanor.
His understanding of relationships might grow. Through his interactions with Sakura, Sasuke could learn about compromise, forgiveness, and unconditional love. For example, he might learn to forgive himself for his past mistakes and understand that Sakura loves him despite all that.