Krum taking a 'mudblood' to Yuleball

[nowheregirrrl]

No: HPFGUIDX 152221

Does anyone else find the Victor/Hermione pairing in GoF weird?  I
have two problems with this:

1. Ron and Harry don't question Krum's motives in asking Hermione to
the yuleball.  After all, he attends Durmstrang (known to teach the
Dark Arts), the Durmstrang students dine with the Slytherins (who
through the Harry filter are all presumed to be muggleborn-haters) and
Hermione is muggleborn.  

As I remember it in school, 'going out' with someone would be the
beginning of some major discussions and analyzing of feelings, and not
just among girls.  Granted, Ron and Harry are definetly clueless at
times, but they are very protective of her and the three of them do
hang out and talk A LOT.  Shouldn't they have been suspicious that
Victor would be a 'mudblood' hater and was using her or maybe setting
a trap for her with regards to Malfoy?  The two boys are constantly
paranoid about Malfoy!

2. And what of Victor?  He publicly allies himself with a muggleborn
even though he attends Durmstrang (which in hindsight we know has a
Death Eater as Headmaster!) and while at Hogwarts is spending time
with known muggleborn-haters in Slytherin.  Is he purposely showing
himself to be 'muggleborn-friendly'? Or is having a muggleborn friend
a novelty because only purebloods are allowed to attend Durmstrang?

He seems to be genuinely fond of her (from what we see through the
Harry filter)and we know she still writes to him after GoF, so is this
a plot device so JKR can bring Victor back for the last book?

So my question is this:  Is the lack of discussion between HG/RW/HP
regarding Victor an oversight by JKR?  Or am I missing something here?

nowheregirrrl