She and him were originally two red threads that did not intersect. They met and intersected on the journey because of "eye contact", but they also separated on the journey for some reasons. Then she gave birth to her and his baby alone. During this period, she also thought that he would come to find her. As time flew by, her heart slowly calmed down. Sure enough, the red threads that should not intersect would eventually separate. Just like her and him, the baby would only be her baby. But five years later, they reunited and slowly merged together.