Not surprising considering she's a competent Queen as opposed to the idiots King and Julian. Granted it's a little cold and politically minded but having top spot means making the tough decisions and placing good of country over personal interests (although doing so should be in moderation.) After all, Leon has shown can take on another country's forces with little support and win, twice. Is owner of a powerful OOPart that nobody else can use or control. Isn't seeking power and money to boost his ego. Yet has little tying him down to the country or washing his hands of everything and leaving. Barely gets along with Julian, King and many nobles seem determined to raise issues with him, and while Livia and Angie have ties to the kingdom they're liable to run away with him willingly. As a ruler she can't turn a blind eye towards Leon's and Luxon's power without trying to encourage him to stay and side with the kingdom as it would be disastrous if he joined a hostile party or country. For example, if that idiot Marquis had managed to get Leon's loyalty and aid then a successful coup de'tat would be a matter of when rather than if. Although thinking he'd go for a princess was rather blind though. If he cared about rank he wouldn't be trying so hard to get demoted and would've pursued Angie and Olivia rather than think they'd be happier with someone else. Especially if her daughter didn't inherit her personality but is either an idiot like her brother, Julian, or a spoiled rotten narcissist like the girls rank Baron to Earl. Guess will just have to see what happens and how it goes, but Leon likely to politely refuse partly because considers Angie (who's rank is couple levels lower than a princess,) too good for him, partly fear of angering Vince, partly to avoid political and social responsibilities included, and mostly because just wants to indulge and enjoy a quiet life with little responsibilities.