Although Draco was the one who suggested changing clothes, in the end, Allie was the only one of the four who actually went back to her dormitory to change.
The other three shared the exact same mindset: this was merely a Weasley birthday party, not remotely worth dressing up for. Attending at all was already doing Allie a massive favor, and they had even been forced to waste a gift on it.
Allie saw right through them, but she didn't call them out.
Chapter 183