Technically, they're still married. But if Everett wants Shuri back, he's got to agree to her conditions: he must live in Birnin Zana, he must win over the tribal council, and he must court Shuri - chastely. Set after the events of the Quick Bright Things series.
p.s. The title is a nod to the 1943 movie, Princess O'Rourke, in which a princess falls in love with an American pilot.
Also: Shuri is 27.