The revelation that Jareth's realm is of "The Unwanted" (his Mother's realm is Winter and his Father's is Summer). Someone give this guy another hug.
The end quote from the Dreams arc. Jareth further confirms his Woobiedom.
Jareth: Do you know how some families fight and shout and curse at each other but at the end of they day they're still your family and you're with them to the end of the world because you love them and they love you?
Javert 'beating' the child (through sort of understanding him) and winning the hunt...namely due to how depressed he looks at the end of the page.
Note how he does this after acknowledging to the kid that sometimes he wishes he wasn't the cynical one while he normally seems fine to be considered The Cynic.
After the wild hunt, Jareth thanks his roommates for not calling him out in front of the other hunters and essentially asks who wants to give him "The Reason You Suck" Speech for the trouble he caused first. Even if it turns into a CMOH, it hurts to see how Jareth is clearly still beating himself up over the Dark!Jareth thing and maybe doesn't realize how much his friends do care. It may help that Javert of all people is the one who forgives him.