Everyone knows Blue is bit of a nympho, but also really cares about her friends, she knows it too. That said, the demoness is not invited because she. . . literally cannot control herself because she feeds on the emotions and enhancing those emotions and pushing them converts it from a snack to a full course gourmet meal. Let’s be fair, if you could turn a salad into a buffet of all of your favorite foods- desserts included- and calories/sugar/heart burn are all a non-issue- would you not take every opportunity to turn that salad into that? Yeah- sure she has a choice, but it’s a heavily weighted choice! Blue will always push boundaries unless she gets a no. She’ll always hope for more but she’s also happy with what she has.