I've been through that cycle, though much deeper than you have, unfortunately. I have to agree with Lilith on this one... you have to stop talking to him, even when he cries and begs. I know that was one of the most effective weapons my ex had with me. Though if you haven't told him flat out that you don't want to see him, make sure that you do. If/when you do talk to him... try as hard as you might not to be affected by his screaming. If you remain calm, it'll help immensely. And don't be afraid to hang up on him after you've said what you need to say. I'm sorry that you're going through this. (((hugs))) But just be strong.

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I see your fantasy... you want to make it a reality

Are you in the mood to be subdued

You see these shackles
Baby I’m your slave
I’ll let you whip me if I misbehave

Tie me to the bedpost

I like it rough
cause I'd rather feel pain than nothing at all