Who is Gabriella Patten from Playing for the Ashes and what is their importance?

Gabriella Patten is married to one of one of the sponsors of the England cricket team. She is highly sexual and has seduced a great many men during her five year marriage. These men include both Guy Mollison and Kenneth Fleming. Kenneth believes Gabriella is in love with him and wants to marry her. Unfortunately, while having a drink with Guy Mollison one night, he learns that Mollison has also had an affair with Gabriella. As a result, Kenneth postpones a trip to Greece with his son in order to confront Gabriella at Celandine Cottage. where she has been living since her separation from her husband. They argue, Gabriella takes Kenneth's car and leaves the cottage, and soon after..... Miriam Whitelaw comes to the cottage and finds Gabriella's car in the garage. Thinking Miriam inside, Miriam starts a fire, unaware that Kenneth is asleep in the bedroom upstairs.