Our relationship is a decidedly odd one. I've never had one like this with anyone before. Pretty much the only thing we have in common is manga. We work together well enough, and have lunch together pretty much every day, but our philosophies on everything else are quite in opposition. So we don't tend to talk all that much at all on any subject. The most in-depth conversation we've had has been over the I, Robot and Spiderman 2 movies. Okay I suppose that reveals more in common than manga, but we're still rather different--his attitude on religion, for example, is probably somewhere on the range of contempt.
If it were anyone else I would without question tell him I refused to pay it. Any of you who know me should know to one extent or another how I despise duplicity and not telling people exactly how you feel. Everyone who's saying I shouldn't pay is using arguments that make perfect sense and ring true with my personal views on how things should be. But in this case knowing him has proven to be most advantageous to my life in ways I definitely had no way of predicting.
So at the current moment I think I shall end up paying it. I'm not sure if I will bring it up ahead of time or just do it...but anyway, thanks for listening to my rant. I guess somewhere in this thread I forgot it was a rant and actually started looking for advice, but it's good I got that out of my system.
(Just kidding. Actually I appreciate all the comments. Glad my desire to not pay it is fully justified in the eyes of pretty much everyone here.)