What is Ekwefi and Ezinma's relationship like?

Ezinma was an ogbanje child and Ekwefi is her mother. Since an ogbanje child is on whom dies but comes back to cause the mother pain, this shows that this was what Ezinma was supposed to do. Ezinma is the only child Ekwefi had and this was why. Because she is the only child, Ezinma and Ekwefi are very close.