HT1975: iOS 4: Understanding Location ServicesLearn about iOS 4: Understanding Location Services
Currently Being ModeratedFeb 1, 2013 12:04 PM (in response to Umm4109)
Only if he has the password for your Apple ID or if you have actively shared your location with him in Find my Friends. Other than that, there's no way he can do it if your phone isn't jailbroken.
If you're in doubt, change your Apple ID password.
Currently Being ModeratedFeb 1, 2013 12:08 PM (in response to Umm4109)
If both of you installed find my friends app by apple on both of your iPhones then yes he can see where u are at. The only way to solve your problem is to go to apple and change your email settings on your phone. The people at the apple store will help you set that up.give them a try