Divorcing The Billionaire Husband

Arianna Caught her husband with her step-sister on their Anniversary. Heartbroken and devastated, she decided to divorce her husband and left the city carrying a precious thing with her. Now, After five years, she is back but not alone. Her five year old son and a Fiancee who is the heir of the royal family landed along with her. Her ex-husband wants her back but she can't forgive his betrayal and more importantly she has moved on from him, is what she thought but as his stubborn chase after her and his grovelling started melting her ice cold heart BUT what about her Fiancee? what about her ex-husband's betrayal? in all this confusion, the royal family announces the wedding. How will Arianna manage everything? will she give up again and run into hiding or confront her messy situations?