This one may be odd because one of the characters doesn't have, like, a ton of information... but I think Seere (https://toyhou.se/9849779.seere) and Roza (https://toyhou.se/9730760.roza-shadowrose) would be good together personality-wise. You said Roza's kind of skittish (so I assumed an ice and sugar personality possibly? Maybe takes some time to warm up to people). Anyways I could see Seere as being a really confident dude and maybe they met while he was on one of his tasks. I feel like Roza would absolutely HATE him at first, not trusting him because of who he is but after getting to know him and hanging out with him for a while she finally starts to warm up to him (and one day realizes she has feelings for him). I could definitely see him as being protective over her even though Roza seems like the type to take care of herself. Maybe Seere would let her pet his raven or ride his winged horse sometime? (Cue I Can Show You The World Aladdin montage lol). Ship name would be ShadowSeere
For me you may do any of the characters in my Dystopia folders (no minor x adult or family member x family member... that's nasty) (PS Vexx, Jade, Kree, Katie, and Dani are all around the sameish ages... I'm still updating their info)