Up until the word 'modelling' I thought you were talking about Sali.It sounds as though the combination of losing her looks and her livelihood at what is also a potentially transitional time of life but seeing her contemporaries able to carry on modelling, triggered a breakdown.
I think there's also the yellow press part to LE's story. She's announcing it publicly to avoid stories that would inevitably be speculating about her changed looks. And those would include alcoholism and drugs and I have no idea what else.