He had grown sparer, and lost his colour, and spoke and dressed quite differently; and, on the very day of his return, he told Joseph and me we must thenceforth quarter ourselves in the back-kitchen, and leave the house for him.

Indeed, he would have carpeted and papered a small spare room for a parlour; but his wife expressed such pleasure at the white floor and huge glowing fireplace, at the pewter dishes and delf-case, and dog-kennel, and the wide space there was to move about in where they usually sat, that he thought it unnecessary to her comfort, and so dropped the intention.
She expressed pleasure, too, at finding a sister among her new acquaintance; and she prattled to Catherine, and kissed her, and ran about with her, and gave her quantities of presents, at the beginning.
Her affection tired very soon, however, and when she grew peevish, Hindley became tyrannical.

A few words from her, evincing a dislike to Heathcliff, were enough to rouse in him all his old hatred of the boy.

He drove him from their company to the servants, deprived him of the instructions of the curate, and insisted that he should labour out of doors instead; compelling him to do so as hard as any other lad on the farm.
Heathcliff bore his degradation pretty well at first, because Cathy taught him what she learnt, and worked or played with him in the fields.
They both promised fair to grow up as rude as savages; the young master being entirely negligent how they behaved, and what they did, so they kept clear of him.

He would not even have seen after their going to church on Sundays, only Joseph and the curate reprimanded his carelessness when they absented themselves; and that reminded him to order Heathcliff a flogging, and Catherine a fast from dinner or supper.
But it was one of their chief amusements to run away to the moors in the morning and remain there all day, and the after punishment grew a mere thing to laugh at.