Advise

I have been hinding from my ex since I was 16 he molested me on the night of my 16th birthday (it was felt like a nightmare until I realized i wasn't asleep) erlier that day I found out he was cheating on me when I asked him what the hell he was doing he said "proving that you're mine" welll he found me kind of... we talked well now I want to run i want nothing to do with him again i am scared he will hurt me anyways my name is Katlyn i changed it on all social media sites to kate but now I feel I need to change it agine I don't want big change sorry easy him changing it to Katie but I don't know how I want to spell it I want to be unique if you have any suggestions on other names comment them :)