Article continues below advertisementOK! can reveal Renée Zellweger is still confronting the long shadow of her four-month marriage to country singer Kenny Chesney as friends say the brief union continues to shape her personal decisions nearly two decades later, despite her settled life with British TV presenter Ant Anstead.Zellweger, 56, the Oscar-winning actress best known for Bridget Jones's Diary, married Chesney, 57, in May 2005 after a whirlwind romance that lasted just five months.