The name of the Protagonist is Ifemelu, not Ifemula.
Also, cases exit in Nigeria where one dumped a marriage partner for a former mate. It may not be common, but it's not entirely alien here.

The Innocent Mage
By Karen Miller

The kingdom of Lur is where to use magic
unlawfully means death, summary death.
Doranen haveruled Lur with magic since
arriving as refugees centuries back. Theirs
was desperate flight to escape the wrath of a
powerful mage who started a bitter war in their homeland, so to keep Lur safe, the
native Olken inhabitants agreed to abandon
their own magic. Magic is now forbidden
them, and any who break this law was
executed. Asher left his coastal village to make his
fortune. Employed in the royal stables, he
soon finds himself befriended by Prince Gar
and given more money and power than
he’d never dreamt possible....
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