Shelby Stivale / Us Weekly: Ethan Hawke 'Vowed' His Kids to Never Publicly Discuss Uma Thurman Divorce, Is 'Envious' of Amicable Breakups - TAP HERE TO ADD US WEEKLY AS A TRUSTED SOURCE - Ethan Hawke made one major promise to his kids when splitting from their mom, Uma Thurman. - "The public eye is like gasoline ...