He frankly prefers to be dragged to a meeting. If Stelios wants to see him so badly then he should work for it. But he has been making strides in Rune making and he doesn't want Stelios to be aware of it. That's why he is here and why Stelios is taking him for granted by making him wait. You don't treasure something if it is readily available.
He is still working on rune making, but not the garbage that the giants of order call runes. He isn't mentally handicapped like them so it is natural that he makes progress beyond what they consider common sense. Some might say that he has mastered the current field of rune-making and achieved more in record time but he isn't impressed yet.
'I'll be impressed when I crack whatever Stelios is up to.' he thought to himself.