Forum:KB:Luke's vision in Betrayal

Does anybody know what Luke's vision of Han, Leia and the Mynock meant? I just noticed this after re-reading the book for the fourth time (yes, I know, I'm such a nerd).

For the Mynock, I figured it was about the Sith revelations Jacen received at the time and that this caused some kind of Force effect, which Luke sensed. I really don't know what Leia's and especially Han's parts are about though. I don't remember what the page numbers were, but Leia says something like "dark dark dark I will not be afraid of the dark" and Han stabs a woman in the back, saying "I loved you in my own way. I would have repaired all the damage I did to you."

So, anybody understand this?