Check your SMS's? maybe he found out your number, and sent you a SMS. and then chose "reply" and then went to the home screen. I can't do that because I have 200 SMS's. and I always go over :/. But I did try to set a pass. and then call the phone, and then chose every possible option there was to go to the home screen while in the call. and then hang up. but it didn't work.
actually check your AT&T account. cuz he mightve deleted the SMS.
actually check your AT&T account. cuz he mightve deleted the SMS.