당신

Why does Sujung uses the word 당신 with some one she just met ? I thought that this word was only used between husband and wife (although I heard that sometimes koreans use it with foreigners to translate the grammatical person "you").

its use for saying (as for) you. its NOT only between husband and wife.

That's not correct. Nobody uses "dangsin" in korea (except married couples and foreigners).

sorry for the incorrect info, just looked it up http://en.wikipedia.org/wiki/Korean_pronouns .

Hi Francisco, 당신 is more commonly used between husband and wife but it is actually pseudo-pronoun meaning it's another form or saying "you" without saying "you". Sometimes to be polite you would use the other person's name or a pseudo-pronoun like 당신 (said body) or 그쪽 (that side). It indicates a level of distance between the speakers although in a husband/wife situation is a term of respectful endearment. The link that Jeremy posted explains the usage: "...an honorific common noun, e.g. dangsin (당신, "said body") or jane (자네, "oneself") (used for "you" in the familiar speech level). The pseudo-pronoun dangsin is actually a noun, from the Sino-Korean loanword 當身 "the aforementioned body". There are a large number of such pseudo-pronouns in Korean." I hope that helps!