"willow trying to fix things with oz" can you explain that? I haven't seen that episode in a WHILE, also if you wouldn't mind expanding what's wrong with Willow in doplegangland? (I know it's strange but I'm REALLY interested in every view of a character and I like to analyse from both sides)
Well she does try a "delusting" spell when she's cheating on Oz with Xander (one of the first instances of her using magic purely for her own gain), she constantly apologises to oz after her cheating is found out and he says something along the lines of "this is more about making you feel better than actually apologizing" (for the life of my i can't find the quote). Doppelgangland is an early instance of her using very powerful magic given her life as being bullied and belittled shows why she abused it so much as it was the only thing she could control (which she then used to control people to her own interest). It feels like more of a foreshadowing to me than some of her bad traits shown outright.