Great Expectations

There are a ton of spots in the novel that just didn't make sense to me but I came across something a little weird. When the two convicts are found and arrested in Chapter 5, I really don't get why they yell at each other and try to put the blame on each other's shoulders.  They know they've been caught and I don't get why the book spends 2 pages just describing the two screaming "Liar!" and "Murderer!" at each other.  Any ideas?

Thanks,

Sean

Group Essay

Zach and Katie, I haven't changed much since Friday, I am still using the three quotes we talked about Friday for the pursuit of pleasure in marriage, "The only way to behave to a woman is to make love to her if she is pretty and to someone else if she is plain", "No married man is ever attractive to his wife", and the altered quote from "Oh!  I killed Bunbury this afternoon.  I mean poor Bunbury died this afternoon" to "Three is company, two is none."  What do you guys think of these quotes?  Also, I had a question about my concluding paragraph.  I feel like because its the first one of the three, I have to make it so it doesn't make the essay seem like its finished.  How do I make my concluding paragraph end things well just with the pursuit of pleasure and not the whole broad topic of marriage being satirized?
Thanks,
Sean