Social media

So today my boyfriend told me to delete my tik tok because I had sent him a tik tok and got made that I had a picture uploaded because originally I made the account for my dog. We had an agreement about four years ago to delete social media due to underlying issues of cheating. It’s now been four years and I downloaded the app thinking that we moved in from the situation. Like it’s been four years I haven’t been talking to others and neither has he although we have had issues in the past. Recently in feb I found out he was talking to another female and I let that slide again. And now he told me to delete tik tok because I can be messaging others. I feel like he said this because perhaps he’s projecting what he is doing to me(texting other females) currently to something I will end up doing in the future. What do you guys think? I need insight because we will be together for five years this Saturday and I just feel so annoyed like grow the hell up. Please COMMENT 😭😭