Pushed my girlfriend after she said mean words to me

I am a student of GSU and she is my girl friend, we argued everyday and both of us gets hurt from it. both of us are 18 years old. she called me jerk, asshole, mean, rude, and she threaten me before. she said she will beat me up and show me how black people act. and her friends call me abusive and assume that i have phsycho problems which i definitely dont. all the words make me feel insulted and uncomfortable. and she yelling at me all the time. Tonight, she came over and said she wants to break up and shes so smart to stay away from me and a lot of mean words. I am not trying to hit her i just pushed her and asked her to get out of my room. And she call me bitch when she left. Now she is planning to call the police and I said a lot of sorry to her. I want to know if I will be arrested or not? PS: she didnt get hurt, even she didnt have browse or red.