I HATE THAT TYPO. "DEFINITELY" AND "DEFIANTLY" ARE TWO WORDS THAT HAVE NOTHING TO DO WITH ONE ANOTHER. THEY MEAN TWO ENTIRELY DIFFERENT THINGS. HOW DO YOU EVEN MAKE THAT MISTAKE. THEY DON'T EVEN LOOK THAT MUCH ALIKE. YOU HAVE TO TRY TO MAKE THAT SWITCH.
I have hardly played Halo at all, but I kind of know what Cortana looks like. Yeah she looks different, but I don't think necessarily "colder". Her hologram or whatever it is looks kinda icy there, but maybe it's mostly because of the scenery?