How do I make her stop liking other guys post and talking to other guys otp?

(long distance relationship by the way) she always likes other dudes post and she has this one guy bsf she runs to when me and her argue. I've told her multiple times i dont like that and she always says that their her friends or she gets mad when i talk about it. she also talks otp with guys and she lies to me that their her cousins or her female friends. she gave me her instagram account login so i know she's not cheating but she doesn't wanna show me her contacts list or her whatsapp or her snapchat messages/calls. in the beginning she would tell me that she will block anyone thats a dude if i told her and now i regret it because she doesn't wanna do that anymore. she even followed her ex again and tried to follow her other ex. her and her guy bestfriend text back and forth on instagram using photos to hide what their saying so i can't see it. and recently she became friends with someone in her “class” and they were otp at one point and then she texted her guy bsf “hes js a friend” while doing the photo text thing they do. and i told her about it and we had a big argument and i broke up with her and her guy bsf said “see how it plays out with your new friend” but i couldnt say anything cause i blocked her and she doesn't know im back in her account. today she liked all of her “new friends” highlights and post. we are on a break right now, not so much broken up, so that she fixes her issues and improves herself from what i told her i didn't like that she did. she barely texts me anymore while she still working on herself and we’re on our break. all i wanna know is how do i communicate with her so that she stops all that before be get back together or break up without her getting mad? she said she wants to change things te be like how they were in the beginning when we had no problems so how do i communicate that with her without coming on as a controlling boyfriend?

How do I make her stop liking other guys post and talking to other guys otp?
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