Tying The Knot With The Billionaire

Emily had no idea that her life would one day take a spin in that direction as she is arranged to marry the son of a billionaire. She had to leave her library career but soon after went back to it, so she could be happy. But her life took another turn when her marriage was about to crash when another man stepped into the picture, leaving her with a choice either to choose her career and what the man was offering to her or her marriage, what would she do? Who is this man?