Sir Paul McCartney is "bearing up" following his split from estranged wife Heather Mills. The former beatle, who has two-year-old daughter BEATRICE with Mills, is trying to continue living his 'normal' life after separating from the former model last month (MAY06). MCCartney's brother MIKE says, "(He) is having a tough time, but he's bearing up and getting on with it. Life goes on. "I don't know if he will try and push the divorce through quicker to get it over and done with. That's up to (him). "His children and I are all here for him as we always have been and always will. He's my brother and he has been there for me - now it's my turn."