How does Linton behave during Catherine and Nelly's visit in Chapter 26?

Linton acts indifferent to conversation, annoyed by laughter, and sullen. He does not seem to want them there, but when Cathy suggests they leave, he looks fearfully back at the Heights and begs her to stay a little longer. He asks her to come again next week, and not to tell Heathcliff about how tired and quiet he was.