First of all, this stems from the change of living environment. College life and work life are very different, which will bring challenges to each other's feelings. The difference of work pressure and time arrangement will make two people have running-in problems in the details of their lives, which will gradually affect their feelings.

Secondly, the different life stages of two people are also one of the reasons. Some people set foot on the road to career success soon after work, while others may still be looking for directions. The differences in fate and values between the two people will make it difficult for their feelings to adjust accordingly.

Moreover, the new experiences and opportunities brought by social life will shake the feelings in the university. Making new friends of the opposite sex and making new friends in interests and careers will make young people emotionally shaken and eventually choose to break up and leave.

Finally, graduating from college also means the end of youth growth, and the uncertainty of the future will make people tend to be emotionally conservative. At such an important turning point in life, it seems more reasonable to choose to break up in order to join a new stage. This rational and perceptual choice also led to the termination of feelings.

The reasons why college couples choose to break up when they graduate are mainly the great changes in their living environment and the differences in their life stages. The complexity of the new job, the differences in values and outlook on life, and the new experience brought by social opportunities will have a great impact on feelings. In addition, when young people enter a new stage of life, rationality will inevitably overcome sensibility, prompting them to choose to break up at this critical period in order to fully meet the opening of a new chapter in life.