The best representation that Catherine gives about her love for Heathcliff is by the way that she tries to convince that she and Heathcliff are basically the same person. In fact, she states, "I am Heathcliff" (74). Throughout the entire novel, the audience never hears Catherine speak that same type of phrase about anyone else. Catherine shows her deep, true love of Heathcliff mostly through what she says to Nelly in their private conversations. By the way that Catherine chooses to tell Nelly her feelings, it is quite obvious that she shares a true, unsurpassable love for Heathcliff, which no other couple seems to share in this novel.
For true love to exist, it must have two people who feel the same way towards one another. In addition to Catherine, Heathcliff also has an amazing passion for Catherine. Although Catherine shows her love for Heathcliff by what she says, Heathcliff shows his love for Catherine by what he does. In fact, the love that Heathcliff possess for Catherine drives him so mad, that it causes him to do things that are out of the ordinary. When Heathcliff finds out that Catherine has died, he can hardly handle himself. When Catherine is finally dead, Heathcliff comes to the realization that he will never be able to have her, in the manner that he wanted. He will not ever be able to marry her, or have children with her. Out of both his love for Catherine, and as well as his frustration at the death of Catherine, he proclaims, "And I pray one prayer--I repeat it till my tongue stiffens--Catherine Earnshaw, may you not rest as long as I am living! You said I killed you--haunt me, then! .Be with me always--take any form--drive me mad! Only do not leave me in this abyss, where I cannot find you! " (Bronte 153). Heathcliff knows that he would rather be haunted by Catherine's ghost until his death, than have to live without her by his side. In this case, Heathcliff's love for Catherine was so strong that he did not mind praying for a great burden, as long as he was not without her for his life.