Ooooook, so the dead one (for now) is her dad and not her (not yet for now) husband. Seems like there is a whole lot going on with this Noona than we were given at the beginning. Well, that means the guy either left her after finding out about her pregnancy (which is not something that rare to happen) or died at some point (making her more and more mind broken from losing her loved ones) and that's how we got the present time noona.