I wondered if Amano was ever going to elaborate on Kawahira's character. Just not particularly in this aspect or this arc.
I feel slightly disappointed with this chapter, Reborn has been pretty good these past few weeks (minus the tormenting, heart-wrenching blood bath), but I guess I was just hoping for more. It may have been a pre-fight chapter, but Von-Mcawesome-name-I-can-not-remember-right-now deserved more of a fight.