In an exclusive interview with ABC Good Morning America's Diane Sawyer, Sheryl Crow talks intimately about the heartbreak and anguish she was forced to deal with when diagnosed with breast cancer -- and at the same time -- the break up of her engagement to be married to Lance Armstrong.

When the subject of the break up with seven-time Tour de France champion Armstrong was brought into the conversation, and the rumor the end of the relationship coincided with her breast cancer diagnosis, Crow says,

"No. No. No, it was really, I mean, really difficult, you know, just really difficult for both of us. I'm not angry. I mean, honestly, I look at it, and I just know that I can't be angry at Lance for being who he is. You know, he's a great person." Armstrong is a testicular cancer survivor.

Crow talks about the initial diagnosis of breast cancer, the subsequent lumpectomy and the many tears. The exclusive interview will air on Thursday, July 6 and Friday, July 7. To watch a preview video of the ABC Good Morning America interview, go here.

UPDATE: For our posts on the two-part interview:
Part One: Sheryl Crow: We are fragile but we are also divine.
Part two: Sheryl Crow adopts Eskimo diet to fight breast cancer.

"I will never forget what the experience has taught me....who I am, who I want to be, who I can never be again. It was a hard time but I'd rather have the really hard stuff than to never know what I know now." -- Sheryl Crow, Letter from the Road.

Sheryl Crow has returned to performing after her breast cancer diagnosis and treatment last spring, and she keeps an online diary. In the latest post Letter from the Road: The C, The Food, A Star, she shares some of her thoughts about being a cancer survivor and tips from her nutritionist. A few of the tips I already knew, some came as a surprise. Here is a sampling of what Sheryl said her nutritionist Rachel Bellar taught her:

• Don't drink water from a bottle that has been sitting in your car. Heated plastic will bleed toxic substances that can be carcinogenic.
• Do NOT cook in olive oil at high heat. This too is carcinogenic. It is fine to saute in olive oil but if you are browning or frying, use canola oil.
• Spices that are cancer preventative, particularly prostate and colon cancer, are cinnamon and tumeric.
• A high omega 6 diet consisting of fish, colorful vegetables, high fiber foods have proven to be cancer preventative. In Asian and Eskimo cultures, the rate of breast cancer is shockingly lower. Whenever you have a choice, go with color -- brown rice instead of white -- sweet potato instead of regular potato.
  

Basically, bright dark and green. I knew that olive oil is good for you, but I did not know that it is dangerous to cook with it at high heat. To read more tips, and to find out about the star in the title of her latest diary entry, go here.

Ontario's and Quebec's province-wide smoking ban in all public places went into effect on Wednesday -- to coincide with World No Tobacco Day. This is what Heather Crowe, a non-smoker who recently passed away from lung cancer, worked so passionately to make happen. As a waitress who worked in smoke-filled restaurants most of her adult life, she felt that second-hand smoke was the cause of her lung cancer. Crowe wanted to insure that no other person be subjected to second-hand smoke and suffer the same fate she did in being diagnosed with terminal lung cancer.

Many approve of the new law banning smoking in all public places, but not the bingo halls that raise money for charity. Ontario's 100 charity bingo halls state the smoking ban will result in the closing of 48 bingo halls over the next year. The Committee to Save Charity Bingo representing the bingo halls indicate that charities will lose $50 million dollars that would normally have been raised during bingo because 70 percent of customers who play at charity bingo halls smoke. They fear the players won't be coming around if they cannot smoke while they play bingo. While it is not in the nature of people to welcome change -- especially when it comes to lifestyle changes -- they do have the enormous capacity to adapt to new situations and circumstances, and in time, I think everyone will become comfortable with the new way. Or at least find alternative ways to make everyone comfortable.

Heather Crowe never smoked, but she was diagnosed with lung cancer. After 40 years of working as a waitress in smoked-filled restaurants, she became a lung cancer victim of second-hand cigarette smoke. Four years ago, she began a campaign of lobbying the Canadian government to pass a law banning smoking in all public places. In television ads for Health Canada, Crowe described herself as the face of cancer caused by second-hand smoke. Eventually, Crowe convinced the Ontario Government to pass the Smoke Free Ontario Act. On May 31st, all bars, restaurants and indoor public places must be 100 percent smoke-free. The act will ban any smoking in any enclosed public places and will add restrictions to the promotion, handling and display of cigarettes in stores. As a result of her efforts, Crowe is credited with accomplishing more in tobacco control to protect public health than any other one person. She had told people she wanted to live long enough to see the anti-smoking legislation go into effect.

Sadly, Crowe died one week before she could see that happen, but not before she accomplished what she set out to do, and her legacy to protect the health of the public from the harmful effects of second-hand smoke will live on for generations to come. Crowe was 61.