Sets up a deal and ghosts, will not respond to text, PM's or calls. Yet he's been online since I've tried to find out what is going on

Sets up a deal to trade, then stops any and all communication. I have the saved texts and PM'S to prove this. He said he wanted to trade, set his terms. Said he'd meet anytime today because his wife was off. Since this morning there's been no response from him, no text, calls or PM's. He's apparently blocked my number, it goes straight to voicemail. But from an alternate number it rings with no response. Beware of this one, not a man of his word. Will not follow through or communicate at all.