Based on the provided information, Alexa's enemy is Gwenny Thompson.
Identifying Alexa's Rival
The reference explicitly states that Alexa's enemy is Gwenny Thompson. This fact is revealed in the context of Alexa's older brother, Lucas, being partnered with Gwenny Thompson in his cooking class. This detail pinpoints Gwenny Thompson as the individual identified as Alexa's enemy.
While the provided reference does not offer further details on the nature of their rivalry or history, it unequivocally names Gwenny Thompson as Alexa's adversary.
