Set a date with a girl she came with her girlfriends it felt weird, because I thought it was a date only with her.

Then she called a guy and told her boyfriend was coming, she touched him and played with his hair I didn't pay any attention to her and began talking to the other girls, then I asked the girl and that guy if he was really his boyfriend, they said noo, and laughed.

How should one respond to this shitest? He is not her boyfriend just a friend for what I saw…

Sorry for my English.