Kimberly White/Getty Sheryl Sandberg, chief operating officer of Facebook, announced her engagement to Tom Bernthal on February 3. In a Facebook post on Valentine's Day, Sandberg revealed she helped plan the engagement. Sandberg said she encourages women not to wait for their boyfriends to propose. "We need to walk into our futures on our own two feet," Sandberg wrote. Research shows more women are proposing to their partners than in decades past.
