Lysandre: I could make a literal mob of fashionistas obsessed with fire theming and three piece suits and also a doctor octopus machine to destroy civilization...or I could pay someone to talk to them about my problems. Malva: I like the pants. Lysandre: DOC OCK ARMS IT IS!
Apparently in the adventures manga Malva was gonna double cross him AFTER their goal was achieved which is very funny they actually gave pay off to her being in Team Flare at all, yet also presenting the idea of "yeah I'm down with killing people who don't buy Gucci"
They angled it at first like she was in love with Lysandre like in the games and felt jealous and slighted by his interest in Diantha but really knowing her she was furious at the thought of someone like Lysandre being interested in Diantha who she probably admires to some degree and nost definitely have some kind of intense weirdass passion for
Malva: I like the pants.
Lysandre: DOC OCK ARMS IT IS!