...Did I arrive at this too late? Rei is also a noble (and a womanizer) who's travelled Serendipity in search of his father. He tends to stick around Darken Vrei, his home, but he's travelled all over Serendipity. He's an excellent navigator (I've discovered this while RPing him: he's good with maps, and gets sucked into them easily), and a magnificent mage. He could help her learn to use her gifts, and he would be pleased to help her. It would be entertaining to see how her bodyguard handles him!
So, there it is. I hope yu'd prefer Rei, or we could do a three-person RP. Either way...