ShellP:
You seem to be highly stressed about this Crown Court case in which you are involved with your ex, and I appreciate your state of mind at the present time. You have received several points of advice from several well-meaning people on this Site in recent times in relation to the assault upon you by your ex, and I really do think you are in dire need of some professional help by way of counselling.
There is such an Organisation called "Victim Support" wherever you may live and they should be the first people you ought to call upon. Face-to-face contact with these professional people will prove to be far better for you than merely "crying for help" to strangers on-line. I empathise most strongly with your current plight, but I don't think you are receiving the help you need in order to make you overcome your difficulties, so it will do no harm for you to try to make contact with Victim Support as a matter of some urgency.
To answer your query: there are no statistics which suggest that Not Guilty verdicts outweigh those of Guilty in the Crown Court in England & Wales. Furthermore, in this regard, your claim is that your ex assaulted you and caused you some physical injury. That amounts to a criminal offence, hence the forthcoming trial, and the law must take its course.