more help please

So me and my boyfriend have been together for 2 years. We live together now .. at first it was all sweet and lovely and I loved it but now it's all hate and anger and no trust. He went through my phone and saw a lot of stuff I did when I was SINGLE. and texts from other people that I didnt even reply to. I admit something were wrong but I was single so who gives a fuck. All my friends know I'm in a relationship. EVERYONE. He wants me to change my bio to everything about him and delete his person and block this person bc he think he has the authority to like wtf am I crazy ? I don't want to do that bc he never once put me on his so why should I look stupid. I'm thinking of leaving him. Help guys !!!