Read it through once

He had his hand in her hair; Hareton attempted to release her locks, entreating him not to hurt her that once. Heathcliff’s black eyes flashed; he seemed ready to tear Catherine in pieces, and I was just worked up to risk coming to the rescue, when of a sudden his fingers relaxed; he shifted his grasp from her head to her arm, and gazed intently in her face. Then he drew his hand over his eyes, stood a moment to collect himself apparently, and turning anew to Catherine, said, with assumed calmness—“You must learn to avoid putting me in a passion, or I shall really murder you some time! Go with Mrs. Dean, and keep with her; and confine your insolence to her ears. As to Hareton Earnshaw, if I see him listen to you, I’ll send him seeking his bread where he can get it! Your love will make him an outcast and a beggar. Nelly, take her; and leave me, all of you! Leave me!”