[See, he hasn't quite figured out what Rin knows. He knows it in his heart and soul, but his mind still needs to catch up. While he can easily admit to admiring Rin and enjoying her company, he still can't comprehend the idea of actually liking anyone in that way.

So when Rin talks about boys being oblivious, he's sure Rin has figured out something he doesn't know, but since she isn't sharing what that is he's just getting mad.]

Did you miss the part where I'm not like most boys? I've got too much to do to worry about girls and feelings. That's why I'm asking you what all this means.

[Come on Rin he at least trusts you enough to give him an honest answer.]