Sending Nudes

So I realize this was really really stupid and I should've never done this but I sent nudes to a guy. He said that he would never save or screenshot them but he ended screenshotting one of them with my face in it. The thing is that he's in a different country and I've never met him and the only social media and info he has about me is my name, age, where I'm from, and what I look like. Do you think if he does post this picture, someone that I know will see it because I really don't use any other social media except for Snapchat and he doesn't have any of my friends on Snapchat and there's no way of him getting it. Or do you think he's just saying this to scare me? Btw he made this threat months ago and I stopped talking to him but now he's back and telling me if I don't send more he's posting it. He has yet to post anything though.