Traveling Alone for Ten Years

Under the dim streetlight at the back door of the school, the young boy finally waited for the girl's confession, and he mustered up the courage to confess to the girl who was shining brightly on the autumn outing tonight. The two got what they wanted and successfully came together. They never separated despite the teacher's persuasion and the pressure of the college entrance examination, but they broke up during the first Spring Festival in college. Why is this? On the train from Qin City to Tianjin City, a story triggered by a camera implicated the two people who were more than 2,000 kilometers apart. They obviously loved each other, but why did they separate after being together for a year? On an ordinary afternoon in his junior year, a boy who was anxious because of the loss of his ID card and student ID card was happy because of an unexpected message flashing on QQ. The two people, who were at the same school and whose homes were more than a thousand kilometers apart, had an intersection. The boy was not absent during the days when the senior sister received his diploma. On the day when the boy received his diploma, the past flashed in his mind... What kind of intersection will they have later?