Move on, text someone else, who wants to be texted.
This guy and I were texting each other, but I was always the one to start the conversation. Now that I haven't reached him, we haven't talked since Thursday. We were planning on having a date this week, but what do I do now?
Telephone him, ask him straight and get your answer, it may be great, it may be painful, but at least you can stop wondering and move forward. If he doesn't answer, and has not answered your text then you can conclude that he is not interested, believe me, if they are interested they get in touch, and the only deviation from that is if you have given him reason to tread carefully.
Well, just a wild guess .. But what's the chances that he's either lost his phone or is incapacitated for some reason? There is always that thought. He 'could' be avoiding you, but .. If you've made plans to go on a date this week, give him the benefit of a doubt and just wait it out and see what happens. If you still haven't heard from him and can not make contact with him either by phone or in person .. Then consider him out of bounds (so to speak). There is nothing for you TO do. It's a lost cause.