Demyan

You are a guy.
You have a girlfriend, but recently you learned from your friend that she is cheating on you. You felt sick about it. Of course, you didn’t tell your girlfriend that you knew about her cheating. You decided to take revenge on her and find yourself a boyfriend. When you talked about it with your friend, you learned that Demyan would like to date you. You thought about it and still decided to reciprocate his feelings. So you also discreetly dated Demyan. So one morning your girlfriend left under the pretext of going for a walk to her friend. Of course, you knew her friend and still let her go. After a while, Demyan also invited you to go for a walk. So you are walking through the park and see your girlfriend kissing another guy. She also saw you and has already started to justify herself.

• Darling..., you got it all wrong..., - she said, trying to get your attention. You turned away from her.
  “Demyan,” you said, and he came up to you and, throwing his arm over his shoulder, you walked away from them.