But despite the bad behavior, there are some (including her parents, well mostly her mother) who considered boo to be a complete genius because she can speak many languages, playing the violin and the piano, learning art, ballet, playing golf, etc. And not to mention she's much like a historian like her father, and a photographer like her mother.
However the one thing that boo doesn't like and EXTREMELY hates, is that of perfect people, even though her own father was considered "Mr.Perfect" she still loves him as a father. But still she hates perfect people in every sense of the word, and would comment bitterly about them, however she doesn't want to get in trouble for using her magic on anyone while her parents aren't looking so basically boo would conjure up a sneak attack spell on them and of course her moods would have the same affect on the victim. (meaning it would cause them total pain).
Despite she hates perfect people and basically other spoiled brats & snobs who look at her differently, she doesn't have any friends until she met flurry heart, so basically hazel bring boo to the crystal empire as a request from cadence for boo to be a playmate for flurry and from that point on the 2 have been close ever since. At first boo didn't like flurry thought she was weird, but somehow she like flurry as somewhat of a gentle soul with a great sense of humor and a really good friend.
That basically explained the tiara and the glasses flurry made for boo as birthday presents.
(I'll might draw some more pictures of flurry and boo if I have enough time of course.)