Edgar and Linton arrive at the Grange. Linton resembles Edgar, but is weak and whiny. Cathy treats him like a pet or baby, kissing his forehead and stroking his hair.
All of the "civilized" Lintons in the novel are a bit weak and feminine. The character of Linton takes that to an almost grotesque extreme.
Edgar tells Nelly that he believes that if Linton is allowed to stay at Thrushcross Grange, he will get stronger because in Cathy he has a playmate his own age. But that night Joseph arrives from Wuthering Heights, demanding Linton. Edgar says he will bring Linton to Heathcliff in the morning.
Edgar's concern for Linton is purely good-hearted. He wants nothing from the boy, other than to help him get stronger. In a way, Edgar wants to take in Linton just as Mr. Earnshaw once took in Heathcliff