Trace Location Throught Phone Number

I really in need of help to trace location of this one lady. I need to know the truth about her. In this case, i cannot do a police report of her because by law she did nothing wrong. We are couple for almost one year but she never want to reveal her background information, i never meet her in person or see her face through video call. She promised to meet me end of this year but I cant wait for it because i cant stand the curiousity anymore. It hurts me so much. Can anyone here has the expertise to do the tracing by using phone number? I want to do this without her knowing. Hope there's someone who can help me.