Betrayal of a girlfriend because of a boyfriend

I had one best friend, we did everything together with her, we were friends for almost ten years, talked, studied at the same school. She was very dear to me. She is now 15 years old.

We were still friends, but everything somehow changed dramatically when my girlfriend met some Russian guy. He was handsome. When she introduced me to him, it was unexpected for me. Some stranger came to us and she said that this was her boyfriend. Of course, I was very happy for them, but after a couple of days I saw this same guy kissing some girl on the cheek.

I was just in shock at that moment, because when the conversation was about his family, he said that he was the only one. Therefore, I knew that this girl could not be his sister. At that moment, I thought that she could be his second girlfriend, that is, he is cheating on my girlfriend.

He noticed me, looked at me, but at the same time started talking to that girl. I quickly called my friend test-antibiotic.com and told me everything, but she did not believe me and immediately decided not to talk to me anymore. I was surprised by my best friend's behavior as she even blocked me everywhere.

I do not know what to do. Please write if I did the right thing and give me advice.