What he did is a crime, especially if you’re a minor. Screenshot every message of people asking you to send more nudes as proof that he sent nudes. People are always quick to judge the victim in these situations when the person who distributed it is in the wrong. They always teach girls to not send nudes and never teach them what to do after. If you know him, his number, or whatever, take it to the police. He violated you, your trust and your privacy and this is not excusable.