whenever im having a good conversation with a girl. guys i barely know will usually approach us, he will interrupt the conversation with blatantly unimportant small talk (stuff that makes you think : this guy has nothing to say, he's just interrupting) . and eventually the girl gets distracted by something and starts talking to her friends or something and then the guy will usually leave. But im like wtf, i could have gotten to know that girl and maybe got her number or something, and that guy had to interrupt us . and the guys arent the boyfriends of the girls either.