I forgot to say, I also think it's really gross how she is talking publicly about how Louisa leaving has made her financially unstable.
Obviously a relationship breakdown is an absolute shitter, but Louisa is not responsible for housing Jack and her son and it comes across as emotionally abusive to me.
Mentioning Louisa, within a load of tweets about not feeling any joy, burnout and so on... that's textbook. I really hope that Louisa has a good support network around her because this must be terrible for her at the moment.