Haven't played Vesperia yet but I've only heard about where Ristelle are like 'we're like a married couple, let's adopt this child' which is pretty canon considering Estelle says it - don't quote me, I'm not 100% sure.
While I'm OBSESSED with Veleanor, 100% of the content built in game was subtext. Although Magivel may not have had much, it's the chemistry (in fanwork) that matters. Like all those fanfictions I've read of Magivel BDSM because Magilou is just a 300% masochist