and put an end to this.

JULIA (perplexed--doubting him). You will swear?

CHARTERIS. Solemnly. Propose the oath. I have been on the point of
swearing for the last half hour.

JULIA (despairingly). You are only making fun of me. I want no oaths.
I want your promise--your sacred word of honour.

CHARTERIS. Certainly--anything you demand, on condition that you come
away immediately. On my sacred word of honour as a gentleman--as an
Englishman--as anything you like--I will never see her again, never
speak to her, never think of her. Now come.

JULIA. But are you in earnest? Will you keep your word?

CHARTERIS (smiling subtly). Now you are getting unreasonable. Do come
along without any more nonsense. At any rate, I am going. I am not
strong enough to carry you home; but I am strong enough to make my way
through that door in spite of you. You will then have a new grievance
against me for my brutal violence. (He takes a step towards the door.)

JULIA (solemnly). If you do, I swear I will throw myself from that
window, Leonard, as you pass out.

CHARTERIS (unimpressed). That window is at the back of the building. I
shall pass out at the front; so you will not hurt me. Good night. (He
approaches the door.)