How Can We Not Know Each Other in Life?

Is he destined to be a tragic and miserable man? Her first love boyfriend was not him. He indulged in indulgence just to forget her, but she was like a tree that was deeply rooted in his heart and could not be uprooted. That's all, he gave up and continued to like her. When her first love boyfriend finally vacated the position, he thought the opportunity had come, but fate played another joke on him. He watched the girl who said she would never fall in love behave intimately with another man. He was angry, and he must treat that little girl well... She said that falling in love with another man was a blasphemy against the relationship between her and her first boyfriend, so she easily rejected her childhood sweetheart. However, another man who was closely linked to her destiny broke into her world, a relationship that she could not refuse. He and her are getting further and further apart. In the end, can they be together?