Politically active, Millay was arrested in 1927 for protesting against the Sacco-Vanzetti executions.
She had several affairs with women during her school years, and later had a long and remarkably progressive marriage to Eugen Jan Boissevain, who managed the domestic duties so that Millay could focus on her career.
The two reportedly had an open marriage and engaged in other sexual flings, though they remained married until Boissevain’s death.
http://www.huffingtonpost.com/2015/07/02/beach-reads-summer_n_7699708.html?ir=Women&ncid=fcbklnkushpmg00000046
