<human>: Can you give me a shortened version of the text?

To help me write this clearly I will call my best friend Abby and her ex Nicole (Not real names obviously). 

Last year Abby broke up with Nicole because Nicole was needlessly bulling Abby's friends. Recently Nicole reached out to Abby on facebook. In that time Nicole has posted a status announcing that she is still in love with Abby, this is really relevant in a minute. The time they broke up wasnt the first time it happened. Nicole had actually broken up with Abby twice in the two weeks before it ended completely.

This week Abby has been suffering from night after night of sleep paralysis. Earlier today she made a status to complain about it and basically say that she will go insane without a good nights sleep. Nicole took it upon herself to type a two paragraph comment berating her and having a go at her for 'making fun of insane people' and 'how dare she complain about something that hasnt happened for a long time'. She then posted three comments in a row saying that shes sorry and she fucked up and thats shes going to leave. 

This happened in literally a span of 30 seconds. The problem being that she did this when they were going out too, where she would get aggressive or rude and immediately have a go at herself and say she was leaving forever. The whole thing seems very emotionally manipulative and Im worried because Abby doesnt see this stuff very easily.

Is there anything I can do to help her see that her ex is a bit toxic, or should I let her (hopefully) find out by herself?
<bot>: Best friend became friends with ex. Her ex is still in love with her and acts out to get her attention before getting a bit emotionally manipulative. Do I do anything?