''My boyfriend wants to post my n*de pics on Facebook''

Dearie...i advise you report to the police immediately...

i know i was stupid. Don't judge and tell me im stupid for letting my boyfriend take nude pics of me because i know i am. I been with him for a while and i trusted him 100% he told me he' not a jerk and no matter what happens even if we break up he promises to delete them and  i can always go to his house and delete them. I believed him. A few weeks later he told me that he lied and if i break up with him and he doesn't want to break up or if i cheat on him (which i would never do) that he will post the pictures on facebook, send them to everyone i know and make my life a living he!l. Recently i found out he's been cheating on me. He has no idea i know about him cheating yet. I saw something that i wasn't supposed to see on accident and that's how i found out he has been cheating. So what do i do now? I'm scared to break up with him i'm scared he will post the pictures. What can i do?