Love as Grand as the World, Guilt as Deep as Sin

Genre: Modern angst romance for female readers, with a groveling ex-husband trope

Core tropes: Stand-in wife, hidden past, running away while pregnant, and a groveling ex-husband

Emotional tone: Heart-wrenching angst at first, painful push and pull in the middle, then healing and redemption

Pacing: Angst, sweetness, intense angst, catharsis, angst, sweetness, in an escalating cycle