Similar to the Friend Zone, the Text Zone is specific to relationships where both parties are not often able to hang out, yet carry on keeping in touch via text message. The overall effect is that the person placed in the Text Zone waits in agony for the one they desire to see them as more than a texting buddy.
Girl 2: Well, he texted me with the time and place to meet up and told me I was beautiful, but once we got together he didn't have much to say and seemed to pay more attention to the sandwich he had for lunch. He later texted me to tell me he had a nice time though.
Girl 1: Dude, he totally put you in the Text Zone.
Girl 2: Yeah, I know. :(
Aww man, I've been texting this girl for three weeks straight, but when we finally got to hang out, she text zoned me! I thought we had something special!