Some relationships at school are long-distance relationships. When they graduated, they had to look for jobs separately. Reality has broken the situation of sticking together all day. Both sides are one person, so the chances of being together are reduced. Therefore, the uncertainty between the two sides has intensified, which has also laid a hidden danger for the two sides to break up, and even doomed to break up. Even if we don't break up, our work can't be as we wish. Marriage is on the agenda, and conditions such as having a house and a car limit the existence of marriage, and some have to break up. In a word, the love that the school talks about is not optimistic, and the ones who grow old together are almost zero.