Does heart break make for a big break?

When you look back over time, its easy to question whether people in love really give everything their all? I mean look at people like Jennifer Aniston and Sandra Bullock. They had two of the most idolised relationships in America and what happened to them? They were heartbroken and let down yet they didnt spend their time upset or regretting anything, they spent their time winning Oscars and Grammys. 

So is it true to say that being knocked down is just a step to rebuild yourself as a better person?

Even in movies, the film focuses on one heartbroken person re building their lives. They focus on fate. If someone is meant to be with someone else, fate will deal with it. I personally dont believe in fate. I believe that everyone chooses to do what they do and they choose this knowing the circumstances facing them at the end. If you love someone, you love them. If you dont, you dont. No ifs buts or maybes about it.

Take Carrie Bradshaws life in SATC. She wrote her best selling books through single life and heartbreak....when did her first bad review show? When she wrote about marriage.

Maybe its the pain and the heart ache that spurs people on to show what they can really do?
Maybe relying on so called "fate" just isn't enough?