lost trust. I need help

Sarah
I didn't trust my boyfriend. And I will admit I was wrong to get on his Instagram.. I haven't heard from him all day and was waiting to hear from him.  I got a gut feeling that he was talking to someone else. Well I got on his Instagram and saw a message he sent to some girl and he said hey. Well I called him five hours later and asked if he talked to anyone.. sure enough he said no. I kept going on and on about it to the point he sent me all his social media messages to show he didn't talk to anyone and deleted the girl he did say hey to and gave me crap about not trusting him. well that just made me so upset so I confronted him I knew he did and he is upset with me too. I don't want to break up with him but I wish he didn't lie and try to make me feel bad about catching him in a lie.. and I was wrong for going on his insta