I am afraid I must go down to Carbury for a few days." "And what am I to do here alone?
Are _you_ going to leave me too ?" "Well, I cannot be in two places at the same time.

I suppose you can manage to get on without me for a few days." "I will go home.

I can get on without you altogether.

I will go home." "Come, Susanna! what is the use of kicking up a row?
I cant afford to quarrel with all my people because you choose to be unreasonable." "What do I care about your people, or about you either ?" "Very well, then," said Marmaduke, offended, "you can go home if you like.

Perhaps your brother appreciates this sort of thing.