The Turn Inside Not His First Priority

Not His First Priority keeps its sharpest change close to the facts the synopsis already gives you.

Now, as she builds an untouchable life on her own terms, Ethan is left sobbing outside her locked door—but her mercy has already run dry. When Luna Bennett's husband, Ethan, abandoned his eight-month-pregnant wife to play the devoted hero for his friend's fragile widow, Clara, Luna thought the betrayal would break her.

That is the spine of Not His First Priority: the people in the synopsis do not get to pretend the story started somewhere else.