Boy Problems! Can someone help me? Thanks!?

Okay so me and a guy were text for like 3 months.. And just recently we talked on the phone for that first... Lol. And then we texted until i feel asleep.. Then he texted me and said "Baby you still up?" and i wasn't. lol.. And i texted him the next day no answer.. Its been a week.. And no tet. Did i do something wrong? Or something? Oh and he hasn't been on Myspace of Facebook.