I Swapped Grooms on Wedding Day

Yvonne Sullivan is abandoned by fiancé Evan Lane for Molly Wilde. She invites Kingsley Grant, her arch-rival, to marry her. Kingsley, with a secret crush on Yvonne, protects her from Evan. Yvonne trusts Kingsley, sees Evan/Molly's true nature. She learns Kingsley moved for her and their competition was to stay close. They confess feelings and live happily.