I think she is showing the public just what her heart is made of - pure anger at being shunned. I believe it says a lot that so many men could not stand more than 3/4 months with her. As much as this is very sad that John is getting attacked again - I’m also witnessing a lot of people ( even fans of hers) saying - enough is enough - this really is just downright vengeful. I think she is shown her true colors - and can not understand how any person can think she has a nice personality. There would have been a way to write s song about past hurts without pointing the finger - she truly delights in trying to hurt him and his career . Truth is - she has no power . Those who want to hare John for whatever reason already do - those who actually have taken the time to watch him grow and evolve have seen him mature into an incredible person. So all this is just stripping back her mask of just how horrible she is behind the scenes .