Well, the reason Roarke uses only one name is that if people called him Mr. Roarke it would be too obvious that he exists to fulfill the reader's every fantasy.

(I consider him a combination of Remington Steele and Bill Gates, myself. No, not Steele's brains and Gates' looks.)

Although both he and Eve have become alarmingly three-dimensional and grown up lately. The latest marriage crisis? "Yes, it's silly but I'm going to keep doing it that way because it's important to me." "Okay, I can live with that."

JDR is the literary equivalent of a milkshake -- not healthy or nutritious, but that's not what you bought it for.