Note the British spelling of colour. I did that a lot back when I was in college.
Behold the awesome power of Caleb not caring until it affects him directly. I know I've done similar comics to this; I just feel that the point needs to be reiterated every so often, since most of my readers aren't in Caleb's situation.
Poor, poor clueless Caleb.
So the score is: Kimberly - knows nobody is fooling anybody else. Brisbane - thinks he's fooling Kimberly. Caleb - thinks he's fooling both of them.
So no. No conspiracy. Just three different ploys that affect each other as they unfold.
Kiranga pt 4 drawn by Cyber Hare