If it had been a man or women, lashing out and hitting a partner with a lamp while in a state of mental breakdown, self harming, cutting her own arms, then you'd hope common sense and decency would prevail from the Police and she'd been referred to see a counsellor and given some help.
In these circumstances, it was in no way in the public's interest for her to be charged, which is what the CPS thought in the beginning, but had to change their stance when senior coppers decided to use serious domestic abuse laws to get her charged.
Do you want to see someone charged in those circumstances?, I certainly don't I can tell you that, I want an empathetic decision made which was clearly lacking here.