<human>: Bit of a read but basically I just want some opinions because I'm unsure how I should feel at the moment. 

We broke up about a month ago (2.5 years together) after deciding the relationship wasn't working and it had run it's course. We were really good friends and we agreed that we would rather be apart and friends than completely separate if the relationship turned for the worse. 

We talked about going out and having fun with other girls/guys and just experiencing life outside of the relationship so we can move on more. I agreed and although this was hard at first when she was going out I grew to accept it.
A few nights before I was going out with friends, she went through my Facebook messages and read messages between myself and a friend about picking up girls. 

She sent me a very angry message, saying how much I have changed and how hurt she is with they way I spoke about that stuff. She then told me that this was it and never wanted to hear from me again; blocked my phone number and all social media. 

I was initially angry that she had invaded my profile and read through my messages but now I feel guilty. I really miss her as a friend as we used to talk a lot, but now its completely nothing. I can't help but feel anxious every night that she might send me a message or call me and we can talk about things, but it's nearly been a fortnight. What do I do? What should I feel? Thank you for any advice you offer

Can you give me the gist of the text in a nutshell?
<bot>: ex-girlfriend/bestfriend blocked me after reading through my Facebook messages and I really miss her/starting to feel anxious about everything.