In My Human Fireworks, the main reasons why Xu Qin lost to Song Yan are as follows:

Personality differences: There are obvious differences between Meng and He. Meng is an introverted, reserved and calm person, but an extroverted, active and independent person. This difference in personality makes Meng unable to give her enough freedom and space in her relationship with Xu Qin, which makes Xu Qin feel bound and depressed.

Emotional expression: Meng He has different emotional expressions for Xu Qin. Mongolia's feelings for Xu Qin are deep and implicit. He seldom expresses his feelings directly, but pays silently through actions. In contrast, Song Yan's feelings for Xu Qin are more direct and warm. He has the courage to express his feelings and is willing to give everything for Xu Qin. This difference in emotional expression makes Xu Qin more inclined to Yan Song's enthusiasm and frankness.

Longing for freedom: Xu Qin has been controlled and bound by his family during his growth, and his desire for freedom is very strong. By Meng's side, Xu Qin felt more restrictions and control, but by her side, she was free to pursue her dreams and life. This desire for freedom makes Xu Qin more inclined to choose Song Yan.

True Love: In My Fireworks, Xu Qin finally chose Song Yan because of his longing for true love. By Meng's side, Xu Qin felt affection and gratitude, while by her side, she felt true love. Song Yan's affection for Xu Qin is pure and sincere, and his unrequited love makes Xu Qin feel respected and loved. This true love made Xu Qin finally choose Song Yan.

Generally speaking, in My Fireworks, the main reasons why Xu Qin lost to Song Yan are personality differences, different ways of expressing feelings, yearning for freedom and yearning for true love.

In my earthly fireworks, in addition to the above reasons, there are other reasons that lead Xu Qin to choose instead of Meng:

Compromise and weakness Chen: Faced with family pressure and obstacles, Chen chose compromise and weakness, and did not dare to pursue his own happiness bravely. In contrast, Song Yan is more determined and brave. He is not afraid of hardship and dares to pursue his own happiness. This weakness and compromise made Xu Qin lose confidence in Meng.

Song Yan's firmness and courage: Song Yan's affection for Xu Qin is firm and brave. He is not afraid of hardship and dares to pursue his own happiness. Knowing Xu Qin's plight, he tried his best to help her, even risking his life to save her. This firmness and courage have deepened Xu Qin's affection for Song Yan.

Song Yan's sense of security: Xu Qin felt an unprecedented sense of security around Song Yan. Song Yan's protection and care for Xu Qin made her feel at ease and comfortable. In contrast, around Meng, Xu Qin felt more uneasy and bound. This sense of security makes Xu Qin more inclined to choose Song Yan.

Natural result of emotional development: In My Fireworks, the emotional development of Xu Qin and Song Yan is a natural result. They gradually developed deep feelings in getting along, which they could not control themselves. In contrast, the affection between Xu Qin and Meng is more affection and gratitude than true love. The natural result of this emotional development made Xu Qin finally choose Song Yan.

Generally speaking, in My Fireworks, Xu Qin chose Song Yan instead of Meng Yan, mainly because of Meng Yan's compromise and weakness, Song Yan's firmness and courage, Song Yan's sense of security and the natural result of emotional development.