Ron -- I think Dexter's problem with Prado doesn't stem from a too trusting nature. The real relationship was established after Prado surprised Dexter following Dexter's having killed Freebo. That left Dexter a stark choice, either kill Prado, too, or involve him. Fortunately for Prado, Dexter decided to play along, at least for awhile. Ever since, Prado has been trying, mostly successfully, to insinuate himself even further into Dexter's life. It's no wonder that Dexter is still trying to figure out how to handle Prado. As somebody else has already noted, Prado's wife was also creating a problem by flogging the idea of Dexter and Rita buying a house right away. It seems that problem may be going away, though, because Rita appears to have backed off of the idea. Unfortunately for Dexter, his problem with Prado is still front and center. Anyway, I continue to love the show and think that this season has been as good as the first two were.