<human>: (Making this as short as possible because im using my phone. Please excuse grammatical errors.)

 So basically I was in a long distance relationship with this guy for about 2-3 months. He was very manipulative and acted childish if I fell asleep before him saying stuff like "I knew you never loved me." And he would be really passive aggressive with me if I didn't reply almost immediately. Well before he started acting like a spoiled child we had exchanged some pictures. He had mentioned something about keeping them (which at the time I thought we might work out and then meet up so I was okay with it) but I stopped talking to him a few months ago because he called me a "bitch who never loved him." and now he constantly tries to manipulate me into talking with him via text/snapchat/facebook.

 I honestly want him to leave me alone and I want to block him but I'm scared if I do he will use my pictures as blackmail. 

The reason I feel like he may do this is because he mentions things about my pics every now and then via text. I really need some advice guys.  Has anyone else been in this situation?  I feel like an idiot. I just really want him to leave me alone. I can't seem to find a solution to this issue.

Can you give me the gist of the text in a nutshell?
<bot>: ex from a long distance relationship might be trying to use pics of me as blackmail if I break off contact. Help!