Sir Paul McCartney's marriage to Heather Mills ended because the former model became bored of life with the former beatle, a friend claims. TV director PHILIP GOODHAND-TAIT, a longterm friend of the 38-year-old model-turned-charity campaigner, first learned of a rift between the pair four months ago when he spoke to Mills on her birthday. Now the break up is official, he is convinced their separate lifestyles and careers played a part. He says, "I don't think it's too laughable to suggest she was bored. I don't think it was a generational thing. "You've got too people who have both got tremendous interests that are going to take them in opposite directions. "That would have played an important part in the split." He adds that Mills will emerge stronger than ever from the end of her four year marriage to MCCartney: "She's not the sort of person who's going to feel sorry for herself."