Why does he need me?

Hello! I am Varya Barsukova, I am 19, and I am just an ordinary girl. I don't like parties, cosmetics, or shopping. I lost my parents early. I am studying to become a journalist and want to change the world for the better. One day I accidentally became a witness to a crime. And the guys from the 'golden youth' of our city started to pay attention to me. But the main thing is—he is stalking me. A cold, arrogant handsome man, whom it’s better not to cross paths with. Who am I and who is he? Maybe he just wants to eliminate me as an unwanted witness? Otherwise, why does he need me?