It's good to do things for your ex-partner.
Jerry's former wife Sharon was driving to pick up her mother at the airport, but she got a flat tire and called Jerry to ask for help.
Jerry wants to respond to Sharon's request.
Jerry asks Sharon where she is, and jumps in his car to come fix her tire.
Jerry tells Sharon that she better call her mother to tell her she won't be coming.
Sharon is happy that Jerry is willing to help her even though they are no longer married, and she is able to pick up her mom.
Sharon is angry with Jerry and now her mother is stuck at the airport.