Boyfriend won't stop following cam girls on instagram?

SadUnicorn23
My boyfriend and I have been together for almost a year now and recently we have been fighting about his instagram habits a lot. He didn't have a phone so he had been using mine and made a new instagram account and when he did he started following all these naked women but didn't follow me. His account said he was happily taken and that he didn't want to talk to any women. Than I bought him a new phone and he made a new account this account basically shows he's single and he's ONLY following naked women not me. I have told him it upsets me and it makes me feel like I'm not enough but he has pulled the whole "that's just what men do" card and it just makes me feel worse. He has saved some of their photos and even added one of them on his snap which than sent him a naked video. It is breaking my heart and it doesn't seem to bother him that it bothers me. We have been fighting for over a week about it and everytime I try to talk to him he gets defensive and mad. I have told him when you are dating someone and in a committed relationship where you love them that kind of behavior is unacceptable but he won't listen. Our 10 month anniversary was a few days ago and that's when he sent one of then the snapchat invite. He also has several old accounts where he flaunted his exes and showed them off but said he isn't doing that for me. Am I being crazy/petty or are my feelings valid? What should I do?
Boyfriend won't stop following cam girls on instagram?
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