In the story, she might be crying because of a lost love. Dancing could be a way for her to remember the good times she had with that person or to try to move on. She may start dancing alone in her room, first with tears streaming down her face, but as she gets into the rhythm, she starts to feel a sense of freedom and empowerment. The movement of dancing can be therapeutic in such a situation, allowing her to process her emotions related to the lost relationship.
It could be that she is crying because she is homesick. Maybe she is in a new place far from home. However, dancing to the music of her hometown can bring back memories and a sense of connection. She might start crying as she misses her family and friends back home, but then as she starts dancing to the familiar tunes, she finds comfort and a bit of that home - feeling in the act of dancing.
One possible reason is that she is crying out of frustration and then uses dancing as an outlet. For example, if she is having trouble with schoolwork and feels stressed, crying is her initial reaction to the pressure, but then dancing helps her relax.
Maybe she faced a huge heartbreak, like losing someone she deeply loved.
Love. Just like any other character, Draco can be heartbroken in fanfiction. If he loses someone he loves, whether it's a friend or a romantic partner, he could cry. It shows his vulnerability and that he's not just the tough - guy Slytherin he often tries to be.
I'm not sure which specific 'girl crying and dancing story' you mean. There could be many such stories. Maybe it's about a girl who is crying because she's sad but then starts dancing as a way to express her emotions or find some relief.
One possible reason could be unrequited love. In the fanfic, Chansung might be in love with someone who doesn't feel the same way. This could lead to a deep sense of sadness and cause him to cry. For example, he might have confessed his feelings but been rejected, leaving him heartbroken.
Another reason might be that he feels a great sense of guilt. For example, if he made a big mistake that had serious consequences for others, he would be overcome with guilt, which could manifest as crying.
Isolation. Snape is a lonely character. He doesn't have many friends, and he is constantly in a difficult position between the Death Eaters and the Order of the Phoenix. His feeling of being alone and not being fully understood by anyone can lead to crying in fanfiction.
She might be crying out of frustration. For example, if she's been trying really hard to achieve a certain goal in the fanfiction, like mastering a new jutsu in a Naruto - themed fanfiction, but keeps failing. The stress and disappointment could lead to tears.
A memory from the past might be the cause. There could be a traumatic event in their shared history that resurfaces. It might be something that they thought they had moved on from, but when it came back to haunt them, it brought out their emotions and made them cry.
She could be crying because she is separated from her parents. Many times at borders, families get split up due to various regulations and procedures.
It could be that the man was dancing too close to her and she felt invaded or harassed, so she reacted by punching him.