The Waiter Who Stole My Heart

The female lead catches her fiancé cheating at their wedding and ends up marrying a waiter on the spot. The waiter is secretly a domineering CEO, hiding his identity while inspecting his subordinate hotel. She ends up married to him for no reason and has to support him financially. Both leads are CEOs, strong in their own right. Whenever the female lead's company faces a crisis, the male lead steps in to resolve it.