Hi Jenny, interesting read. While certainly not an isolated case I'd tend to think he is in the extreme minority for this type of thing over there... I've had black and brown friends with Korean girlfriends in Seoul experience no such behavior.
Maybe you've seen this recent NYT article on a topic we discussed a while ago: http://www.nytimes.com/2009/11/02/world/asia/02race.html?_r=1
Reminded me of what angered me in that discussion - I don't think that it is a person's responsibility to be offended for other people's plight, but saying the problem doesn't exist altogether is insulting for the people who have to go through it because they don't happen to be fair haired Europeans (and some who are).