Bloomingdale grew up as the daughter of a socially-prominent Los Angeles, California family, and holds the namesake of the United States department store outlet Bloomingdale's, as her husband was the chain's heir. She is a frequent party host, many for charity, being dubbed "Good Queen Betts".
Mrs. Bloomingdale is a lifelong resident of Los Angeles, currently residing in Holmby Hills. A Roman Catholic, she was involved in fundraising projects for the Los Angeles Cathedral. She also contributed to the funding for the development of the Ronald Reagan Presidential Library.
Bloomingdale's life and marriage and her husband's well-publicized affair were the basis of Dominick Dunne's novel An Inconvenient Woman. However, Bloomingdale remains friendly with Dunne, appearing with him at the annual Vanity Fair Oscar Party in 2006. Other friends have included Joan Collins and East Coast socialite Nan Kempner.
In 2007, Bloomingdale took part in presenting fashion designer James Galanos with the Rodeo Drive Style Award, and attended the opening of "Nancy Reagan: A First Lady's Style", an exhibit chronicling Nancy Reagan's different clothing at the Reagan Presidential Library.
HOW America's Wealthy Socialites Paid Millions to Buy a Place at Charles and Camilla's Table; in an Amazing Deal, the Prince Lets a Society Magazine Record the Palace Dinner He Hosted with His Mistress for Benefactors of His Charity
Sep 09, 2001; Byline: CAROLINE GRAHAM;KATIE KNIGHT THE candlelight flickers, a fabulous collection of the Queen's most treasured Old Masters...