That's the neat part, there isn't any importance except for knowing that she shouldn't care about the story progress since she changed her ending already
Well, the author already added in a milf elf, I guess they had to balance it out with a 100 year old loli dark elf or else their publisher would get mad
Serena was just minding her own business and that idiot proceeds to call her out for not being infatuated with the princes. Wouldn't that be a great thing, since that's one less person to contend with?