Forbidden Ecstasy by Arthur Adlon

Evelyn Jones - her intimate friends called her Casey - was the sweetheart of Canver County Hospital. She took love where she found it, and gave as generously. Lewis Mason, the new intern on the staff, thought she was made to order for his passionate needs. Eleanor Watson, whose decorous demeanour hid a seething and pent-up nature, had other ideas involving Evelyn and proceeded to put them into practice. Torn between two kinds of love, Evelyn tried to be true to both of them, and faced a terrible decision. . . .