I'm not convinced the author has a plan for that title yet, if I'm being real. It's one of those webnovels where the summary and first few chapters are pure, concentrated premise—dumped husband, mysterious disappearance, billionaire-level comeback. They hook you with that fantasy catharsis. But I've read a dozen stories with this exact setup; the return is always a montage of revenge via wealth and public humiliation. The husband grovels, the side chick gets exposed, the female lead buys the company. If it follows the template, the 'what happens' is a power fantasy checklist, not a plot.
That said, sometimes a writer can surprise you if they shift focus. Maybe the billions are a burden, or the ex-husband's new life is genuinely happy, complicating the revenge. But the market for these stories usually demands triumphant schadenfreude, not nuance. I'd expect lavish shopping sprees, high-stakes business takeovers, and a new, impossibly perfect love interest appearing just to make the ex seethe.