There is an article where the heroine also likes a boy, but she feels that she is suitable for him, so she rejects the boy and later transfers to another school.
Three years later, they met again. The girl mustered up the courage to approach the boy. When they were in a long-term relationship, the boy wanted to go abroad because of his good grades, so they lost their relationship.
Two years later, the boy comes back
Intention: Love each other in the emotion of love and gain