Our circle of friends will change after graduation, and you will always be closer to some friends around you. When we were in college, our circle of friends might be fixed in a circle. After graduation, with the continuous practice in society, we will know more people and our circle of friends will gradually change. You have a different circle of friends from your former classmates, and you will pay more attention to the people around you now. Gradually, you and your college classmates began to alienate.
After graduating from college, not everyone will be engaged in university-related jobs, so they will naturally have less contact with each other. After graduation, everyone's job may be different. In addition, young people have a lot of work now, and you are worried about your work every day. After a long time, you will have less and less contact with your old classmates.
You won't get along well with everyone in college, and you will only keep in touch with a few good friends after graduation, and other students won't communicate often. When we were in college, we basically became good friends with a few people who hit it off with us, and other students maintained a very polite relationship. After graduation, those students who don't communicate much will naturally keep in touch with each other, while you will only keep in touch with those who have a good relationship during college, and because everyone is in society, everyone will become more and more busy and contact will gradually decrease.