Finally, a good black character, but...
I am of two minds with this. I really enjoy this authors grasp of language and cultures in general, and this is displayed yet again in this novel. They must have either done a lot of research, been well traveled, have diverse friends, or some combination thereof.
That said, there were some parts that felt a anti-black, such as they way the antagonist's flaws are framed on Black American culture, such as the critical air around her use of Bitch Better Have My Money for a fight song... That song is about black women reclaiming their power from theiving white men who think they can take what they want with no consequences. It was literally a song Rihanna wrote after her white male accountant drained her bank accounts and ran with the money. It's a power song and would make a great fight song for any Black MMA fighter. Just because it's written and preformed in the colloquial AAVE dialect doesn't make it less powerful.
This is just one example of subtle anti-blackness featured in this novel. So while this book does a good job of featuring Haitian Creole culture in a really beautiful and positive way, it continues to disregard and demean Black American culture in subtle ways that stand out to the Black American reader, and that could easily subversively influence the minds of readers who belong to other demographics.
While I don't think it was intentional at all, I do believe that this type of subtle anti-blackness is the single most dangerous form of racism in America. It's that subconscious belief of blackness = danger that dehumanizes us, and can mean the split second difference between our children being perceived as children, or being shot down in the streets for pulling candy or cell phones from their pockets. It seems like a small thing when you're just binge reading romance novels, but this pervasive imaging from every direction in our media infects the minds of people, police and civilians alike, who have the power to end Black lives with no consequences.
To the author - What you write matters. Black lives matter.