More Rose Weasley Headcanons because I don’t have a life.
When she was a young girl, she picked up a cursed object that caused her to get a massive white streak in her hair. She went through a phase where she was embarrassed about it, but she eventually embraced it as part of who she is.
She did actually compete with Scorpius academically during 1st year, but eventually stopped when she realized that he didn’t care. They became friends soon after.
Rose and Albus were very nearly abducted when they were about 5 years old. The family was on edge for weeks.
Rose began to like Scorpius in their third year when he helped Hugo with a particularly difficult potions assignment while she was at quidditch practice.
She realized she liked Scorpius when she started to miss him during the Christmas holiday that year.
Rose is one of four people to finish all the books in the Hogwarts restricted section.
When James Potter 2 decided he wanted to become an animagus, she first tried to make him do it legally, and when she realized that wasn’t going to happen, she decided to help him do it. He began transforming successfully consistently in his sixth year, and only got busted when he accidentally transformed inside the Potter house (Albus came around the corner to scare him as a joke. He would’ve kept it a secret, but Harry saw everything.)
Her muggle grandparents got Just Dance 2, 3, and 4 on the Wii. She has the Maneater, Rasputin, and California Girls dances committed to memory.
She played Just Dance with Scorpius when she introduced him to her grandparents. He was extremely bad at it but liked spending time with Rose.
She thought she was bad at Wizard chess her whole life, but after going to Hogwarts, she realized she was just playing against Ron Weasley.
She spent so much time at the Potter house when she was a baby/ small child that she began to pick up some of Harry’s mannerisms.
Her parents found out she was a witch when she was three years old. She tripped and levitated all the way down the stairs.
Rose and Hugo went to muggle primary school. Rose hated it so much that one day during kindergarten she levitated herself into a tree and refused to come down.
Rose found out that Scorpius was absolutely smitten with her in first year when she helped him clean his trunk after someone had vandalized it.