What does Kiara remember about Dee and who mothered Trevor?

Kiara remembers that Dee tried to be a mother to Trevor for the first few years of his life. At least she was home half the time, she bought formula, and she made sure someone watched him when she got high in another apartment. By the time Trevor was seven, Dee pretty much quit trying. By that time, too, all the aunties who used to watch children in the building were gone too.