My Long-Lost FianceEP 10

Jack is publicly humiliated by Amy and her lover Jerry at their wedding, where they mock his inability to consummate his marriage and reveal their affair. The situation escalates when Jerry and others physically restrain and taunt Jack, leading to a dramatic confrontation where Jack curses them, and an unexpected defender stands up for him.Who is the unexpected defender standing up for Jack, and how will this alter the dynamics at the wedding?