The way that JA has established Emma's characacter at this point, placing all her unsavory qualities under a harsh spotlight, reminds me- not of a heroine, but a hero- a certain Mr Darcy ;)

EMMA- Rich, handsome, clever, used to having her own way and being first in consequence, with a very strong sense of self-worth, and ofcourse an unfortunate inclination to detach their friends from romantic 'entanglements' with persons who they think might be beneath them... Ring any bells??