(digitalspy.co.uk) - Guy Ritchie has vowed to save his troubled marriage to Madonna, according to a report today.While Madonna is telling friends that she hopes their split will be handled "quickly and reasonably", Ritchie has admitted that he is still desperate to patch things up - for the sake of their son, Rocco.Ritchie poured his heart out while having dinner in Mayfair with his 80-year-old father John this week."He admitted there are problems and deep frustrations in the relationship," a source told the Sunday Mirror. "They have been living much of the time apart - something Guy attributes to work pressures."But he categorically denied that he will go along with a divorce. He refuses to risk losing full contact with Rocco - or putting his son through a break-up. The ?50million he could receive from a divorce settlement pales into insignificance compared to his love for his son."Madonna is expected to announce her marriage is over in November. It is believed that she will attempt to prevent further rumours about their future next week by being deliberately photographed having dinner with Guy in New York.Rocco, 7, is the couple's only biological child. Ritchie is the stepfather of Madonna's daughter Lourdes, and the pair also have adopted tot David Banda together.