The red-headed Elf child suggests they are sons of Fëanor and them attacking the boat is an allusion to the First Kinslaying.
You really should read about some of the bullshit the Noldor got up to.-a s if she's some human twenty something year old, instead of part of a race of very wise and immortal beings that would certainly have very different and far better standards. Whiles you could say elves could be have like that, it doesn't fit the race, but it's there to set up this female character's motivations and it's just all wrong - that's not the Noldor high elves, nor Galadriel as Tolkien would present them.