UPDATEMy boyfriend has an account on here to spy

Update I knew about it the other day and made him delete it. It’s a fake account which makes it even more scarier. He deleted it but then today I saw it was back on there. I got mad and told him this is a women’s support group and that it’s disgusting that he’s invading peoples privacy. I told him it’s even creepier since their are young minors on here and he knows that. Girls post photos of themselves on here in confidence that there won’t be creeps on here. It’s creepy. He told me it’s all my fault because I make him insecure and that he wouldn’t have to monitor me if I would stop having an attitude and making him suspicious. He says that it’s my fault because In the beginning after he cheated on me I would go through his phone but I recently realized how toxic our relationship was. I turned my locations off and stopped snooping through his stuff because I don’t want a toxic controlling relationship anymore. Because of that he says I must be cheating and he just knows I am.

You heard me right. It’s creepy. He won’t delete it unless I do. He uses it to make sure I don’t post about him or anything else. What do I do?