I'm hopelessly romantic, so it would be nice to see ML put a ring on FL's finger with a nice big stone. And everywhere he says "my wife, my wife."
Also, I hope the ex-husband works at ML's father's company (or one of its subsidiaries) and ML becomes a vice president or some high-ranking person and introduces FL to everyone at the company as his wife or fiancée. The ex-husband's life at the company will be hell because of ML.