Conversation so far:
What are some of Pamela Harriman's romantic involvements?
Pamela Harriman had romantic involvements with men such as: W. Averell Harriman, who much later became her third husband; Edward R. Murrow; and John Hay Jock Whitney.
How many times was Pamela Harriman married?
Pamela Harriman was married three different times.
Why did Pamela Harriman keep getting divorced?
Pamela Harriman's two husbands after Randolph passed away.
Did Pamela Harriman have a lot of affairs?
Beside two additional marriages, Pamela Harriman had numerous affairs with men of prominence and wealth.
Are there any other interesting aspects about this article?
Pamela Churchill Harriman became a United States citizen in 1971 and became involved with the Democratic Party, creating a fund-raising system—a political action committee—named Democrats for the 80s.
Did Pamela Harriman marry W. Averell Harriman?
During Pamela Harriman's marriage to Randolph Churchill, she had romantic involvements with men such as: W. Averell Harriman, who much later became her third husband.
Did Pamela Harriman have any other notable affairs?
Notable consorts after her divorce included Prince Aly Khan, Alfonso de Portago, Gianni Agnelli, and Baron Elie de Rothschild.

Question: How long did she stay with him?
Self-contained rewrite: How long did Pamela Harriman stay with him?