The Loneliest Woman in New York By LYNNLEY BROWNING SHE used to get foil highlights every six weeks — her shade is Soft Baby Blonde, and she was religious about color — but the last time she called her Manhattan salon, Pierre Michel on East 57th Street, she was told not to return. “I understand,” she said, according to the salon’s co-owner. The Amagansett florist who decorated her husband’s annual corporate party in Montauk with lismachia, Queen Anne’s lace and thistles has banned her as a client, saying she will not associate with the wife of one of history’s most...