When Lilia suggests that Leona invite Malleus to the tournament in his hometown Leona adamantly refuses, telling Lilia, “be sure to brag about it to Malleus later. Make him nice and jealous.”
Lilia struggles to pick out an animal-motif coaster souvenir for Malleus during the event and it is Leona who recommends what he ultimately purchases: a lizard (Vil: “Incredible. Malleus will receive a souvenir hand-picked by Leona”).
When Idia says that he might be able to get by in Diasomnia were he to transfer dorms Leona asks, “You’d become another adherent of Malleus Draconia?,” but Idia says it would be tedious and he doesn’t need to deal with peer pressure just because someone is famous and powerful.
Leona agrees, saying, “It’s a pain when the majority forces their opinion on you.”
Leona will insult Malleus equally to his face and behind his back: during Housewarden meetings leona will refer to Malleus as a “self-important, stuck-up jerk” and “pretentious punk,” and when Malleus’ reports that his magic gets cut off in the hinterlands of the NBC event Leona responds, “Here I was hoping (Malleus would) finally be useful for a change.”
Leona tries to excuse himself early from Lilia’s farewell party because “the lizard hasn’t shown up yet, and (he’d) just as soon split before looking at that gloomy face of his,” but Ruggie refuses to leave the free food.
Upon realizing that Malleus is responsible for the dream-world drama of Book 7 Leona says that Malleus is going to pay for what he’s done: I always knew he was shady, and figured he’d pull some ridiculous stunt sooner or later. This deserves some proper payback.”
In Book 7 Ruggie summarizes:
Getting mixed up with Malleus always ends poorly for (Leona)…he gave you a beating in spelldrive the year you became housewarden, then another after your ploy at the spelldrive tournament…Then in our dreams, you had to run around a bunch to wake up the Heartslabyul guys, only to get beaten up AGAIN.
Leona approaches the presumably possessed Malleus during Spectral Soiree as “the perfect opportunity to beat (Malleus) senseless, fair and square,” but the group struggles in the fight against him. Leona decides to “go full throttle with (his) magic,” but Rook cautions against it.
Leona tells Silver that he and Lilia are “way overprotective” of Malleus, and when Crowley announces that they should conduct a group search to get Malleus to attend a meeting Leona says, “He’s not some lost child. Quit treating him like one.”
When Leona confronts Malleus in Book 7 he says, “If only l’d known sooner how ridiculously childish you were, I could’ve approached this any number of ways. I don’t know or care what you’re wishing for. I just can’t stand seeing you get your way.”
Twisted Wonderland Reference Note 