I think a lot of these people are fine with what they have, for the most part. Texting/talking constantly is their entertainment, and if they try to start something in person, all that could go away. On a smaller scale, I've had friends who have met someone, gotten their number, then had a text relationship with them for a couple months. When they finally went on a date, it all crumbled pretty quickly.
This show has definitely gotten worse over time, but I will apparently be watching till the bitter end.