Why do you suppose Esperanza feels angry inside when sally agrees to kiss the boys to get her keys back?

Esperanza feels angry when Sally agrees to kiss the boys to get her keys back because it highlights the disparity between her values and Sally's choices. She sees Sally compromising her self-respect and autonomy for something so trivial, which contrasts with Esperanza's desire for genuine connection and integrity. This situation also reveals Esperanza's own frustrations with the pressures of gender roles and the objectification of women, deepening her internal conflict.