This monologue is in the first act of The Hunted, the second play of
CHRISTINE--Vinnie, I--I must speak with you a moment--now Orin is here. I appreciate your grief has made you--not quite normal--and I make allowances. But I cannot understand your attitude toward me.
(Then, as Lavinia remains silent, Christine gives way to fury and rushes down the steps and grabs her by the arm and shakes her.) Answer me when I speak to you! What are you plotting? What are you going to do? Tell me!
Full text of monologue available at: O’Neill, Eugene. Mourning Becomes Electra: The Hunted. 1931. http://gutenberg.net.au/ebooks04/0400141h.html#p02