As someone who works for CPS, I have seen too many DV cases cross my desk. They would not have gone forward with the case, celebrity or not, if they didn’t have substantial evidence to make their case. I’ve seen one too many DV case slip through my fingers due to a technicality.
That being said, I feel dreadfully sorry that she felt that this was her only option.
Her solicitor would have advised her of the probable outcome but that being said, I would have been incredibly surprised if it had been a custodial sentence. Hefty fine, an injunction to stay away from the boyfriend and a suspended sentence is more what I would lean too.