Stood Up or What?

So been talking to this guy for a few weeks, been planning on going out for like a week and a half. His texts for the last two days have been all, I like you a lot and I can't wait to meet you and I'm so excited...so today comes aaaaand nothing..nada...not a single word. He was going to plan something and give me the details this morning for dinner tonight..so obviously that didn't happen...and I'm just stuck as to where to go from here. 
On one hand, I really really like him and I'm concerned that something happened.
On the other, I'm so damn tired of being ghosted or stood up or whatever the heck this is. 
I texted him about 5pm asking him what was up...and que crickets. 
So do I message him again? Do I leave it be? What would I even say? I'm normally better at this shit but I think I caught the feels on this one. Any advice would be helpful...