Oh, I really need to finish this at some point. (My backlog is EATING ME. Like the tree, damnit. :P)
But I love the way that they GET each other in this, and that they evaluate the subtexts (which, if rearranged, spells buttsexs, to be incredibly juvenile xD) in what each other says and respond to them.
Also, re the "spheres of influence" line mitsuhachi: Unintentional double-entendre, perhaps? :P