"You know very well what's wrong." he said.  "You strung me along, making me think you were going to have lunch with me instead of that guy, getting my hopes up, only to immediately dash them by telling me you were still having lunch with him.  I mean, who asks someone if they have plans if they had no intention of doing anything with them!?"  As he said this, his voice started getting louder, tears forming in his eyes, practically shouting at the end.