Cannot provide specific evidence about why Gavin feels it's difficult being around Aurora's family without access to the text 'In the Walking Dance'. Normally, characters may face such challenges due to differences in values, cultural backgrounds, or social discomfort.
Without access to the text "In the Walking Dance," it's not possible to provide specific evidence regarding why Gavin finds it difficult being around Aurora's family.
However, typically characters may find it challenging to be around someone's family due to cultural or socioeconomic differences, contrasting values or beliefs, or discomfort in social situations. In analyzing a character's feelings, one would look for descriptive passages, dialogue, and character interactions that reveal the tension or difficulty.
To answer this question accurately, one would need to refer to specific parts of the book where Gavin's experiences with Aurora's family are mentioned and analyze his reactions and the context provided by the author.