Joseph Conrad: 'the truth'

When Gene mentions the truth, I think he is talking about the fact that he wants to see somthing bad happen to Finny. Gene is jealous that Finny is so popular and can get away with anything he wants. Gene may also feel like Finny is singling him out because they are friends, and maybe Gene does not want to be the guy who stands out of the crowd. This could be why Gene is not happy when he keeps getting the ball in blitzball.