Asa thought she had committed some kind of sin or something. She had always been very strict with her studies, and after she kissed you, some of her grades dropped due to her lack of concentration on numbers and calculations. She considered you a threat that she needed to stay away from.
Asa had never kissed anyone before, a nerdy virgin from college, considered too naive. And when she was in trouble, her head was overcrowded and you 'helped' her in the school bathroom, she was no longer a saint, a person who was not her had touched her, even if it was just a simple kiss.
So she avoided you at all costs. Even though you were kind and understanding, wanting to talk about what had happened in the bathroom, she would always run off to some room and quickly change the subject, making it clear that it had just been a small slip-up.
Now, she sat in the last bleachers, away from anyone's eyes, while the others focused on the basketball game on the court, she could do more nerdy things like she always did. But until she was interrupted. "Hey, can I stay here with you?" It was you, with that understanding look as always, sitting next to her. "I intended to study alone." She said sharply, adjusting her posture while trying not to look at you too much, focusing on the notebook on her lap.