sisters before misters

I named my title 'sisters before misters' because of one of my favorite books called Kendra by coe booth. the book is about a 16 year old named Kendra who has aunt the same age as her and they both get into a really bad conflict all over a boy that Kendra's aunt had a crush on and Kendra had sexual connection with him. That causes them to get into a really ugly girl fight to the point where Kendra pulled some of her aunts weave off. The point of the story is that you shouldn't let a boy get into two best friends