What the fuck was Vanessa Gekko’s problem

Been rewatching the show for the first time in 2 or so years and for some reason I remember the bit with Gekko and PC being that Gekko just always got everything she wanted and had a perfect life causing the rivalry with PC, and that the rivalry was mostly on PC’s end. But now on this rewatch I’m seeing how straight up evil Gekko is towards PC at basically every opportunity, and that it just gets worse as show goes on. Literally why is she like that 😭