It is of course sad that Madonna and Guy Ritchie's relationship should end in divorce after 7½ years - the couple have three children: her daughter Lourdes, 12, their son Rocco, 8, and David, 3, who was adopted from Malawi in 2006. But it also goes to show that Madonna, despite being a global superstar worth £300m, remains a perfect mirror for her female fan base - by which I mean those of us who have liked her since she sprang on the scene in the mid1980s in cheap lace and rosary beads, with a wink in one eye and a steely glint in the other.