He resented Edgar for marrying Catherine, as he felt that if he had not been degraded by Hindley he might have married her. Nelly states that Heathcliff "[seemed] to hate" Edgar even as a child and regarded him "as a rival". (58). His eventual desire to seek revenge was a progression of their childhood rivalry that was only heightened by Edgar's marriage to Catherine. Heathcliff began to take revenge on Edgar as soon as he returned to Wuthering Heights. He visited Catherine regularly, despite how much this annoyed Edgar, as Nelly describes, he "turned pale with sheer annoyance" at Heathcliff's mere presence (96). After Catherine's death, Heathcliff continued to take revenge on Edgar through his daughter, Cathy. He hoped that his son Linton and Cathy "might fall in love and marry", so that he could inherit Edgar's estate upon the death of his sickly son Linton. Heathcliff succeeded, locking up both Cathy and Nelly until Cathy agreed to marry Linton. With this, Heathcliff fulfilled his wish to become master of Thrushcross Grange upon Edgar's death shortly thereafter. Heathcliff now had control over Edgar's property and daughter, and had succeeded in his revenge. In his typical fashion, he goes past the point of revenge and takes out his dislike of his father on Cathy. In the end, she reminds him so fully of the mother he had once loved so much