In the summer of 2019, Zhou Ruanyuan met Shao Shengzhou. Zhou Ruanyuan thought Shao Shengzhou would become her light, but that light only shone on her at fifteen.
They lived in different cities and couldn't meet. Happiness always passed too quickly. After Lin Wanyan confessed her feelings and Shao Shengzhou deceived her, Zhou Ruanyuan chose to break up with him.
In 2020, they met again and got back together. Shao Shengzhou promised not to deceive Zhou Ruanyuan again, but three months later, Yu Xin appeared and they broke up once more. Perhaps it was because of the distance, or perhaps because of their studies. Shao Shengzhou accepted Yu Xin's confession and took the initiative to break up with Zhou Ruanyuan.
Theme: Save yourself, and learn to move on little by little
You can add some details and environment, it's well written.
Love filled your 15 years old...?