Geez, am I the only one here who prefers to go with the theory that Toadette is actually Toad's sister?! I know that not-endorsed-by-official-company strategy guides like Prima's can't be trusted on character infromation, but if you've paid attention, you might have noticed that Nintendo Power's own "Mario Kart: Double Dash!!" strategy has never actually said anything about Toadette's character! Therefore, I prefer to go with Prima's theory about Toadette's relation to Toad, since Nintendo has never actually said anything about it. Besides, adding a female suffix to a guy's name in order to give a name to his female counterpart seems more likely for a sister than a girlfriend. Seriously, if I gave Toad a love interest, I'd give her a more creative name.