My wife is having an affair with my friend. As painful as it is I'm very turned on by it. I find myself masturbating just thinking about it. I have caught them a few times but just stood there and watched instead of barging in and stopping it. is there something wrong with me? The odd thing about this is that I actually fantasized about them being together. Its almost like a self fulfilling prophecy. His cock is very large and I always thought she would enjoy it. Guess I was right.