"No Exit" Question

According to Inez, Garcin is the torturer.

INEZ: Ah, that's the way it works, is it? Torture by separation. Well, as far as I'm concerned, you won't get anywhere. Florence was a tiresome little fool, and I shan't miss her in the least.

GARCIN: I beg your pardon. Who do you suppose I am?

INEZ: You? Why, the torturer, of course.