The 36-year-old heiress rang in the new year as a bride-to-be! Zylka dropped down on one knee during their romantic ski trip in Aspen, Colorado. "I am so excited to be engaged to the love of my life and my best friend," Hilton tweeted, as she showed off her massive ring to announce the exciting news. "I have never felt so happy, safe and loved. He is perfect for me in every way and showed me that fairy tales really do exist!"