A friend Ive known for 50 years has become a self-absorbed, petulant know-all. Should I cut off contact? | Leading questions

This is a fairly common problem with decades-long friendship, writes advice columnist Eleanor Gordon-Smith. Do you respond to the person you knew, or the one youre tired of knowing?Read more Leading questionsAn old friend - we first met over 50 years ago - used to be kind, supportive and good company. But she has become a self-absorbed and petulant know-all. She is the centre of her own little world, and all her friends - me included - are expected to run around after her and cater to her needs....