<human>: Condense the text into a few key points

My boyfriend broke up with me back in January because I wasn't ready to share the way a previous relationship had ended. Instead of telling him exactly what happened, I told him something else hoping we could just move on... at the end, I gave in and told him exactly what happened because I felt guilty. 

Since it was part of my life before I met him, did he have the right to push me to tell him everthing as happened? I know I should've been stronger and could've just told him I wasn't ready to share my entire past with him just yet. I should've set a boundary. I am very open about myself, my mistakes, the things I like/dislike... But when it came to that particular part of my life, I didn't even know how to verbalize what had happened in my past. I felt the pressure to say something, and of course that "something" should've never come out of my mouth. After I told him everything I felt so exposed, he broke up with me saying he couldn't trust me anymore BUT perhaps he could talk to me again if I could prove that he could trust me again. Why give me hope? :(

As part of the deal, he asked me not to contact him at all. Our relationship went from being super good to just a sudden break up because of my past, which had nothing to do with the present. I miss him. It's been really rough.

It's been 4 months since the break up and I still find myself crying my eyes out every time I think of how things went down. I replay the break up over and over in my head... I can't sleep, I can't concentrate at work. This is messing up with me... I don't know what to do.
<bot>: Break up because I wouldn't tell how a previous relationship had ended. Did ex have the right to be so intrusive about my past? (only 5 mo long relationship)