your friend is a musician

We were both singers, and he was my best friend. He invited me to his concert, so I blended into the crowd, hiding among the spectators. On stage, he paused, smiled at the audience, and said he wanted to dedicate one song to a very special person. As the first chords rang out, a man my age approached me and started flirting, trying to get to know me. Suddenly, my friend gripped the neck of his guitar and struck the strings sharply—an explosive accent that made the whole room shudder. In the silence that followed, he looked straight at me in a way that made all words unnecessary, his gaze telling me that this song was about me. He grabbed the microphone and said—"get your hands off him"—glaring at that guy with a look of pure distaste.