List of causes of Ondine's curse. Following is a list of causes or underlying conditions (see also Misdiagnosis of underlying causes of Ondine's curse) that could possibly cause Ondine's curse includes: Persons who have CCHS get it at birth, or develop it due to severe neurological trauma/damage to the brainstem.
In real life, Della (Barbara Hale) was married and Perry (Raymond Burr) was gay. So, no, they were not an item on the show or behind the scenes.
Animal Attraction - Remus Lupin / Marauder's Era. Kylie Kai Jane is a friend to the Marauders, but is completely oblivious to their big secrets. Over the summer before sixth year, she enters the puberty stage of Lycanthropy. In other words: she's a hormonal werewolf looking for a mate.