why is madame loisel so happy at the party

Madame Loisel was thrilled to be dancing..... admired and desired. Her evening has been a success.

She danced madly, ecstatically, drunk with pleasure, with no thought for anything, in the triumph of her beauty, in the pride of her success, in a cloud of happiness made up of this universal homage and admiration, of the desires she had aroused, of the completeness of a victory so dear to her feminine heart.