Most Helpful Guy
So right now you have texted twice with no reply, right? I would say wait another couple of days and then text him again and just say, "hey, haven't heard from you, I'm game for another date if you are. Text me back if you are interested!" Then the ball is his court. If he doesn't reply after a few days it is time to forget and move on.
Most Helpful Girl
I'd suggest waiting one more day and then text and ask if everything's ok.