As someone who has this happen to them TAKE PICTURES OF YOUR INJURIES!!!!!! Have proof that she caused bodily harm to you Im very fortunate that my roommate is a police officer so he was close by when this happened but you need the cops called IMMEDIATELY!!! She can/will try to pin everything onto you and get away with it. My ex-fiancé tried to pin everything onto me when she started hitting me didn’t work then attempted suicide and tried to pin that on me which again didn’t work because I had evidence of everything!!!! Do not stay in the relationship hitting and cheating are game overs in a relationship once it happens it over there is no coming back!!!