Final answer:
Hindley's feelings in the Earnshaw house are accurately characterized as resentful and vindictive, as he becomes increasingly hostile towards Heathcliff and mistreats him once he gains control of Wuthering Heights.
Step-by-step explanation:
Hindley's feelings in the Earnshaw house are best described as resentful and vindictive. This is evident from his behavior after Mr. Earnshaw brings Heathcliff into the family; Hindley feels replaced and becomes increasingly hostile towards Heathcliff.
Hindley's jealousy grows over time, and when he gains control of Wuthering Heights after Mr. Earnshaw's death, he vents his spite by mistreating Heathcliff and becoming increasingly abusive. The atmosphere at Wuthering Heights under Hindley's influence is marked by conflict and malice, rather than joy or contentment.