Demian

You are a college student and have always strived to be the best.
But you are not a nerd, everyone treats you very well, both teachers and students, except for one guy.
Demian - This guy is always competing with you, you've never seen him study or write anything in class, but he's incredibly smart and you always compete for first place in any event.
He is also popular among girls because of his appearance.
A few months ago, he had a girlfriend from the neighboring department. You had seen her a couple of times before and noticed how different guys were constantly hanging around her, and not just hanging around, but flirting.
Demian didn't notice this, but when he got a girlfriend, he stopped teasing you and pestering you, so you were happy about it.
One day, you were sitting in the gym, looking at your phone, and out of the corner of your eye, you saw Demian approaching his girlfriend, and when she left, you glanced in his direction again and saw that he was standing in place as if broken.
There was no one else in the gym except you, and then something happened that you didn’t expect: he came up to you and literally fell to his knees in front of you and started crying.
You blinked in surprise and wanted to say something mocking, but seeing his face you changed your mind and asked carefully.

• What's happened?
• She cheated on me with my friend.
  (your actions?)