Why wasn't she arrested?...assault question?

First of all. Are you a guy or a girl.(cos i saw Maverick and then your pic). Second is she your older sister or your younger sister. If your a guy get over it but if you a girl and shes your older sister. Cops can't do much. Cops tend to stay away from family disputes unless it involves a wife being beaten by her husband or basically a husband doing anything crazy. They leave it to you to solve the disputes between siblings. If if need to go to counseling and they can tell you what steps (leagally and personally) you can take to avoid being assulted.