<human>: Can you condense the text into a few key points?

IMPORTANT: I only broke no contact because I had come to terms with the worst, which I had reason to suspect, and was ready to say my goodbye.

I attempted to make a final apology for my behavior during the rough patch leading to our breakup and trying to reach out to her while I was still in an emotionally charged state and was met with sheer hate. I was even accused of attempting to manipulate her due to miscommunication (I initially reached out for the first three days after the breakup, emotionally charged and lacking tactfulness: no surprise). In fact, a lot of the supposed issues she had were due to miscommunication that was never addressed or false altogether. She even tried to make me jealous after a certain point by saying she didn't even wait 12 hours after the split to fuck someone else, which I suspected. But through all of it, I was able to keep calm and remain collected...and honestly? I've never felt so empowered. It only made her angrier and try harder to knock me down or get more explicit about the things she had done since "moving on" these past two weeks. In a way, I feel like the bigger person for being able to admit my fault in everything that went down, in spite of all the ill-will being thrown my way. But at the same time...I'm sad that I'm responsible for all of that harbored hate and denial. It was bad enough to the point where she claimed never having been happy in the relationship. Of course, I only wished her the best, and told her to take care of herself. I just hope I did the right thing by talking to her, even if it was primarily for my own benefit of moving forward with my life.
<bot>: Her anger says to me that she hasn't really moved on whatsoever. I have moved on, especially after her promiscuous claims. Should I attempt to give her some sort of closure for all of this pent up anger?