Stay with your girl but damn...I would be annoyed if my chick called 16 times to see where I was and called my friends aswell. I had an ex do this and one day she called 24 times and 16 to my house in a matter of 2 hours. She also called 3 of my friends. I broke up with her the next day. Tell her to chill with the calls unless she thinks you cheat on her but stay with her. But, keep this new chick on check just in case...