A character in "Rules of Attraction" by Simone Elkeles humorously expresses concern about his brother's masculinity, suggesting that he has lost his courage or assertiveness on a journey to Mexico. The line implies a playful tone, indicating a mix of worry and mockery regarding his brother's situation and decisions.

The mention of "Brittany" adds an element of intrigue, as it hints that a female character may play a role in this perceived loss of bravado. The quote encapsulates themes of sibling dynamics and gender expectations in a lighthearted manner, which is central to the book's exploration of relationships and personal growth.