he is saying you are a failure to ease his concious, he knows he is responsible but transferring blame takes the guilt away from him. you are by no means a failure, you are a survivor! have you saved the text? maybe you could show it to the authorities, do the bxxd for harassement, offensive texts are not only a form of harassement but also a form of abuse in their own right.
if he is so into texting, use it for your benefit,save all his texts, hey even ask by text why he abused you, if he has not already been charged you may be able to gain evidence to aid your case against him. whats good for the goose is good for the gander!
moving city will be hard at first, you will feel lonely, but with a little effort you will feel much better, try to get involved in some groups, get into a routine so you are in the same place at the same time each week e,g swimming pool, library etc, you will be suprised soon people will start saying hello to you. invest in a personal alarm, this will help you feel safer when out, a small tin of antipersperant in your pocket is classed as harmless but is invaluble if you are attacked, it dries eyes aswell as sweat if you get my meaning!
good luck xx