What can now happen after I was involved in a struggle with my girlfriend’s 14 year old daughter?

She started slapping, kicking and pulling my hair. I managed to restrain her and we fell to the ground. At this time, she then bit me twice. She finally quit. I let her up and she ran to her room. Her mom came home. I told her what had happened. We agreed that I would leave for a couple of days. I had talk to their mom several times. Next thing I know the police are calling me telling me that they want to talk to me. By this time, I had gone out of state to visit family. The cops said they would issue a warrant if I do not come back in twenty four hours. I feel like they are bullying me into this.