Rather good ad-libbing from Minoru. Somehow he managed to twist an act of pure jealousy into an act of deep loyalty and friendship taken too far. Considering Ikuno didn't quite manage to follow all of it, it might have been too good ad-libbing, but fortunately for her, Naoya is mellow enough that he didn't mind the small things, as bizarre as this all must have been for him. Perhaps the most important factor is that since he loves Amane, he wouldn't want to hurt her friends either, if they seem to remain on Amane's side.