Why is that overdoing?

HELEN

Why, because there's enough here to fit out at least three babies.

HOFFMANN

Did you take a walk with my wife?

HELEN

What am I to do if she's so easily tired?

HOFFMANN

Nonsense! Easily tired! She makes me utterly wretched! An hour and a half
... I wish, for goodness' sake, she would do as the doctor orders. What
is the use of having a doctor, if....

HELEN

Then put your foot down and get rid of that Spiller woman! What am I to
do against an old creature like that who always confirms her in her own
notions!

HOFFMANN

But what can I do--a man--a mere man? And, furthermore, you know my
mother-in-law! Don't you?