Why did he secretly record us?

Anonymous

So my ex and I have been broken up for 3 months. I blocked him for the past few weeks and it pissed him off that he’s been texting me from a fake number. I told him I knew that it was him and to stop texting me which made him even more mad. So a few hours later he tells me that he has some “videos”? I’m thinking it’s videos of other girls he has been with or the girl he cheated on me with. I asked what did he mean but he told me to guess. We talked, apologized and made up. I brought up what did he mean by "videos" again, and he told me it was just a joke.

We got into an argument yesterday and I did my best to verbally provoke him (my way of getting back at him for our breakup). It was my goal for him to make him mad and get under his skin. I hit a nerve that ended with him doing this…...---> sends me two videos. I clicked the messages and see videos of us having sex. I had a certain shirt on in the video which helped me remember the day. That day I remember he reached over for his phone that day. What makes it even more scarier is the videos are really old. I met him around October and our first time having sex was around December and these videos says it was recorded in January and its August. In January we were actually getting along. He tells me that he has even more and that there’s a longer video around 3 minutes. Had I not pissed him off I wouldn’t have known these existed. I told him to delete them and he says he will but I doubt it cause he barely been responding now. I've been nervous with anxiety all day. What do I do?

Why did he secretly record us?
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