Man everyone here is jumping on shipping the Yuri route without thought to the consequences or the idea that this isn't the ideal happy end where every pairing succeeds. I guess that's what the author tried to point out at the beginning, players of otome games don't think about the consequences or anything, only what they want.
In the other hand, a power trio of King Sieg, Queen Lise and their mutually shared Finne would be interesting indeed. 😏