Is Boyle some sort of foodie? A fan of different foods who buys food of a high quality? Maybe eating cheese is some sort of comfort eating for him? - https://en.oxforddictionaries.com/definition/foodie - https://en.oxforddictionaries.com/definition/comfort_eating Not sure, sorry. Hope that helps a little.

Cheese is sold in or from large round pieces called "Wheel"s. Wheel's are large, as in multiple kg. It appears to refer to a large quantity of cheese. . As Gareth says, it might refer to "comfort eating", just eating a lot to make oneself feel better. Rather like the meme in American TV of women eating a whole punnet of icecream when annoyed or depressed. . The phrasing of "A cheese wheel" afterwards is strange. It is as if there is another interpretation of the earlier sentence that needs clarification, but I do not know what it would be.