Is it possible that she has access to any of your cloud accounts: Google, ICloud, FB, etc? Consider recycling your credentials and enabling two factor authentic

Is it possible that she has access to any of your cloud accounts: Google, ICloud, FB, etc? Consider recycling your credentials and enabling two factor authentication wherever possible. Also, she might not be telling the truth and maybe finds you in other ways like a special device or other people that might leak your location one way or the other.