What is the main conflict in Wondrous Strange by Lesley Livingston?

The story follows the main character, Kelley Winslow, as she tries to make it in theater after moving to New York City. Kelley is in Central Park practicing her lines after finding out she has to take on the lead role as the understudy of Titania in A Midsummer Night's Dream. Kelly catches the eye of a handsome stranger, who gives her a rose and then disappears.