When will he stop treating his wife like his little sister?

Ever since she was young, Mattie has had a crush on James, her father’s business partner. But the eligible young bachelor, poised to marry a beautiful socialite, is always hounded by the media. Mattie believes that a plain girl like her is no match for him. One day, his engagement is suddenly called off. To evade the media, he stays at Mattie’s house during the Christmas holidays. He then proposes marriage to her. Is it an act to get back at his ex-fiancée? Or could it be something else?