Am I a terrible friend? (Please just read it. It's not what you think this question is)?

I just ripped off my friend by trading him RB Felix Jones (Dal) and TE Heath Miller (Pit) for RB CJ Spiller (Buf) and TE Visanthe Shiancoe (Min). He's likes football but doesn't pay much attention to the NFL. I told him that Jones is the starting RB for Dallas and that Spiller plays behind a terrible O-line. I knew he would accept it but I didn't tell him that Jones shares time with Marion Barber. I've been telling him how bad Spiller is going to be because of the bad O-line, even though that most people are saying how he's going to be a breakout player.