That means the opposite of "Life isn't fair". Partiality - unfair bias in favor of one thing or person compared with another; favoritism.
She's written, in that quote, that life is fair.
If you want to complain about life being unfair like "an emo 6th grader" that's your choice, I was just pointing out that she wrote the opposite of that. Your original comment appeared to equate her statement with "life is unfair" when that was the opposite of what she wrote (as it was translated, at least). Critique her writing all you want, but critique what she wrote, not what she didn't.