My (22M) friend (21F) recently came to me saying that whenever something new happens in her life, she feels the need to tell me right away and she gets anxious if she doesn’t. I definitely wouldn’t want her to feel this way, so i asked her what could be causing this anxiety but she had no idea. 
 In the pursuit to help her, i brought up something that happened in the past. I reminded her that near the beginning of our friendship she would nag me and write “bad things” about me in her private tumblr blog and would never tell me what they were. This caused me anxiety, so i told her that sometimes I would purposely do the same so she would feel what I was feeling.
 After telling her this she said she no longer trusts me and doesn’t believe that a real friend would do that to her. I told her  that I definitely regret doing something so immature instead of just talking to her, but also that she had done the same to me so i didn’t understand why she was so angry.
 This conversation happened 4 days ago and we are no longer friends according to her and have not talked since. I really wanna be her friend because she has been there for me always and I have been there for her. Any advice as to what I should do, and AITA?