How can i fix it with my bf?

My boyfriend and I broke up 3 days ago because he looked through my phone. I’ve told him before that i didn’t like it and not because i have anything to hide but because it’s my property and i want my privacy. So on my birthday we went to this bar/restaurant and when we got up to dance he put my phone in his pocket so that no one would steal it but then he went to the restroom and looked through all my texts and FB msgs, he came back and looked normal and acted like if nothing had happened and i knew but i didn’t tell him anything. The next day, we didn’t text each other at all so when he got out of work he called me and asked what i did and then the conversation made it’s way up to the msgs and we got into a huge fight because he had asked me if i have ever said that he wasn’t my BF and i said “no” but on one of FB msgs i said i didn’t have one but it was 3 months ago when we had been together for 3 months and i wasn’t even flirting with the guy so he got mad and he also got jealous i was texting my ex so he broke up with me. Does he have the right to be mad and break up with me over those things? Am i overreacting? Should i apologize or something? I want him back /: