Bonnie is a happy and effervescent person, “that girl ate bubbles for breakfast” being said by Murdock on more than one occasion. Bonnie is very intelligent and finds magic studies to be enjoyable. Bonnie mostly calls themself Blair as the find it less girly and asks that other people do too.

The teen does have some struggles. Wishing they were the son that their father must surely wish for, and that they would be able to run with the pack like Father and the other men and as they grow they are beginning to resent their femininity. Bonnie's nannies and governess have noticed the boyish tendencies and try to correct them, but the love and protection from Father keeps Bonnie free to be themself.

Bonnie feels quite uncomfortable at times and appears very shy whenever it comes to times like changing in the Ravenclaw dorms, very deliberately ensuring no one sees them unless they are completely and thoroughly dressed. The teenager is nearly fourteen and their body is beginning to make decisions that they feels should be theirs to make.

Bonnie is a gender-fluid non-binary person. They dont feel like a girl, but also know they are not a boy. They are something in the middle and will try to take the best of both worlds. All Bonnie asks is that *they* be the one to choose and not puberty.
Bonnie will definitely run with the pack one day, their plan is that they will be an animagus before finishing school, and then will ask a cousin to bite them to transform them into a proper Greyback.
Bonnie is frightened that one day Father may remarry, they dont want someone else to replace Mother's memory, and also Bonnie can't stand the thought of a step-mother going through pregnancy like their mother did