It's an arranged match, negotiated between the rulers of the kingdoms! The thinking that it was a good way for the Elven royal family to get eyes in a kingdom that isn't their traditional ally, as well as insert their bloodline into the bloodline of the Asuvian royal bloodline.
In terms of the emotion between the two, we're starting off with them having had a pleasant first interaction with each other and are going to go into it in an organic fashion, seeing if affection develops between the two of them as they contend with the drama currently brewing in Asuvia.