Am confused! Don’t know if his lying or not

So I started talking to this guy on snap and we exchanged random pictures of each but his pic looked too good to be true I showed my friends and told them about him but they where “oh his fake, I feel his fake blah blah” I didn’t listen to them and just continued talking to him he was nice and sweet then he started asking for nudes I told him I couldn’t but he begged me for it, so I sent him just my boobs without my face on it, then one day he asked for money I told him I was broke and had nothing on me but he kept on asking when he realized I wasn’t giving in, he threatened to leak the pics at first I doubted that he had them but he sent me the same pics I sent him and I was like how can u post it when my face doesn’t show and he said his gonna add my pic to d boobs pic and post them and he said that he wants money or my full nudes I tried convincing him that I was poor and lived with my wicked step mum so I had no money whatsoever and I can’t send my full nudes, he then agreed and just started talking to me normally and he said he has deleted the pics he had but idk why I just can’t believe him tho I feel his lying but I don’t wanna talk to him anymore too am afraid that if I stop talking to him he might leak them even if he claims to delete them, and i recently just found out that he stalks me on my other socials too so am really scared… what should I do?