All characters belong to Michael Dante DiMartino, Bryan Konietzko and Nickelodeon.
N.B. This story features no spoiler from the unaired episodes. Instead, it uses the assumption that Zuko joined the Avatar and that they later rescued Suki. Descriptions of the western air temple will be either kept to a minimum or be whatever I need them for.
Aang couldn't be accused of any malice or negligence. He only wanted the best for his friends. That was why he had invited them to a chic inn he found, positive that they would enjoy having real food and authentic beds for once. So, of course, he didn't see anything wrong with his friends enjoying his gift. He still was slightly concerned by the copious amounts of alcohol some of his friends had ordered, but he remained sure that nothing bad would happen.
Katara had nothing to reproach herself. Her distrust of Zuko had decreased since he had helped them to break Suki out of prison. Also, it was surprisingly entertaining to watch the former prince down enough drinks for bloodbending to not be effective on him. Suki doing the very same thing worried her a little, but she understood that the past weeks in prison she suffered were trying and that she felt the need to ease her mind. Moreover, she couldn't imagine any of them drunk enough to engage each other in anything other than banter or a food fight.
One couldn't point the finger at Sokka. He, like his sister, understood that Suki could want to drown her harsh experiences in alcohol. And despite the astonishing amount of wine she downed, she didn't even stutter and seemed to be enjoying herself much more than she had in the previous days. And he was certain nothing short of brainwashing could make his girlfriend unfaithful. Moreover, he was secretly convinced that Zuko was as straight as his boomerang, so he didn't feel threatened in any way.
Toph couldn't be blamed. For anything. Ever.
It wasn't Suki's fault. Her escape from prison hadn't eased her nights; they were still haunted by nightmares answering cruelly to the questions about the fate of her fellow warriors that plagued her mind. She really thought alcohol would help her by clouding her mind, chasing the unpleasant images away, and that was why she poured herself a first glass of wine. When her mind wasn't clouded enough, she poured herself another glass. Then another. And another.
It wasn't Zuko's fault either. He had thrown his life upside down to fulfil his destiny to stop the war started by his ancestor and had betrayed his father and sister to do so. In spite of knowing he had done the right thing, his conscience refused to let him in peace. Three years at sea had taught him that liquor was a good remedy against cases of conscience, if only because of the splitting headache an overdose could cause. So he had decided to drink himself to a coma, but he turned out to be too resistant for that.
Haru couldn't possibly be held accountable for anything that happened that night. He was the drunkest of the three. Indeed, he had recently realised that nobody wrote fanfictions about him and consequently felt thoroughly depressed, and it didn't help that he perfectly knew this very story would barely feature him.
Teo held no guilt. His best friends always had been Aang, swiftly followed by Sokka and Katara, so it was with them that he discussed that evening, completely oblivious to Zuko and Suki inebriating themselves or to Haru falling asleep on the table, drooling and plastered. One should not mistake his lack of attention for lack of caring.
Blaming the Duke would require an incredible amount of bad faith. He was too young to even start to comprehend the implications of two teenagers of opposite sex being completely smashed and left alone as their friends left, two of them carrying a passed out Haru, for their rooms, confident that the remaining duo would later be safely led to their own rooms by the staff of the inn.
And it was most certainly not the waiter's fault. He hadn't been present when the Avatar's group came in, so he never witnessed the displays of affection between Sokka and Suki. As he came to their table half an hour later, he genuinely believed them to be together, more so than ever when seeing them being so comfortable with each other and chatting with such enthusiasm. Anyone not knowing them personally would have made the same mistake. He had no desire to stir trouble when he led them both to the same soundproof room where stood a full bed, and had no idea he was doing anything wrong.
As it is, it was nobody's fault.
Of course, neither Suki nor Zuko agreed.
I would particularly like constructive comments about this multi-chaptered fanfiction, especially whether the characters are in character in spite of the humour. Speaking of which, I am very interested in learning if the humour used in this story is good. So, if you find anything you do not like, let me know.