I received a message on instagram from a guy who doesn’t follow me saying “I jerk off to your pictures everynight”, what the actual fuck do I do?

I am actually disgusted, I don’t know who the guy is. And he sent a video after I responded with “wtf is wrong with you”, in the video he was jerking off with his pc showing my instagram page and the picture zoomed in. I don’t post revealing pictures of my body, I dress fully clothed and my post are typically pictures I took of the city and a selfie. I’m actually very disgusted, I took down all my posts on instagram a even my highlights. after about an hour of me leaving him on seen he messaged me again saying “your a fucking bitch for taking your pictures down” I’m not sure what to do, I deleted my instagram account after that. I’m actually disgusted that someone had the nerve to do that, and then message me telling me they were doing it and even sending a video.

I received a message on instagram from a guy who doesn’t follow me saying “I jerk off to your pictures everynight”, what the actual fuck do I do?
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