Complex sentence: Des and Jacqui have a drink at the Dog, and Jacqui pretends she doesn't know about Des' racist activities, and he is overcome by guilt, admitting he attacked Ravi due to the colour of his skin.
Split into simpler sentences: Des and Jacqui have a drink at The Dog, and Jacqui pretends she does not know about Des's racist activities. He is overcome by guilt, admitting he attacked Ravi due to the colour of his skin.