from my vantage point i believe you made the right play. the only thing that could have changed me is the player you were up against. if he was a mouse, someone who only plays the best hands, i would have folded after he came over the top with a bigger bet. if it was a jackal, someone who raises on just about every preflop, i would pushed all in after he raised. id still say it was a good play, just an unlucky break.
i think you should have reraised that guy .. but not all in..
if he had some A + suited low card he would fold.. i must say he would fold anything but a AA AKsui
so if he had called or again reraised you should think again.. KK beats only AA ... if he would reraise you with going all in.. then you should save ur ass cuz he got aces thats for sure..
so i think you both where a bit wrong and a bit right