Maybe she has an irresistible charm. It could be her personality, like she's very kind, understanding and full of positive energy that makes him feel really good around her.
She might maintain her physical appearance well. Looking good can be one of the initial attractions. For example, she dresses stylishly and takes care of her hygiene.
Perhaps there are emotional undertones that she's not fully aware of. Maybe she has feelings for the other person on a deeper level, which is expressed through the physical act in the story.
She might keep coming back because she has unfinished business. Maybe there are unresolved emotions or issues in the relationship or situation described in the story.
One reason could be sentimental value. For example, if she had important memories associated with the place like a first love or a major achievement. Another reason might be the people. If she has good friends or family in that place, she would be drawn back.
One way to interpret it could be that there is a character named Sex. So, the story could be about how she has some influence over him that makes him return continuously.
Another possibility is that she has been there for him in difficult times. She might have provided emotional support when he needed it most. So, out of gratitude and the comfort he feels around her, he keeps coming back to her side.
She might go back to her old boyfriend because of familiarity. They already know each other well, and she may miss the comfort of that old relationship. Maybe they had some great memories together that she can't forget.
Well, it might also mean that there are deeper emotional aspects involved. Sometimes good sex can be a way to connect on a more profound level, and she's coming back because she feels a stronger bond through that. It could also be that she has discovered new things about herself sexually during the previous encounters and wants to explore further.
She could be back because she wants to give the relationship another shot. Maybe she's grown as a person during the time apart and believes she can be a better partner. For instance, if she had issues with commitment before but has now worked through them. Or perhaps she realized that the problems that led to the breakup were not as big as she initially thought and can be resolved with better communication.
There are several reasons. He might be afraid of getting too close to people because he's lost someone important and is scared of more loss. It could also be that he's discovered some new power within himself that he doesn't understand and is worried about hurting others if he gets too involved. Additionally, there could be some political intrigue in the village. Maybe there are some people who are plotting against him and he's keeping to himself to avoid being a target or putting others in danger.