Nothing you can do
I am in a similar circumstance. My boyfriend and I got into a fight and after years of being together my hand got shut in the car door and he broke my thumb. After almost a month I decided it was too much to handle and wanted to drop the charges. His laywer suggested I write a letter to the prosecutor letting them know that I no longer want to continue and why. I basically told them I am on the verge of losing my job due to missing so much work (which is true). Ive read that in most cases when a women calls the police with assault charges they are telling the truth. Very few lie. I have a feeling you were hurt and you didnt lie and were scared and now that he might go to jail, prison, etc...your scared because you think you'll look bad...or maybe you did something to cause it? He probably deserves to go to jail. The state wants to protect you, which is great, you have no say in whether the charges will get dropped. My advice is talk to someone about you, for you, and if he goes to jail, im sure he deserves it. I know my boyfriend and I are going to trial and im sure he will go to jail. But he shouldnt have chased me down. Look at the results. The close to 4 weeks I had away from him opened my eyes a lot. Take this time to really think about what this guy has done because it is now out of your hands