Obsession — Gwynne Forster

When Selena Sutton moves from Wall Street to a little Texas town, she finds trouble in Prince Cooper, a spoiled playboy whose advances she fights off. Wanting to make amends for his older brother's behavior, Magnus Cooper shows Selena a tenderness that makes her believe she can trust again. But when he suddenly proposes marriage, she begins to doubt him, suspicious that he is only trying to protect his prominent family from scandal.