Jimmy Kimmel and Sarah Silverman.... Why?

One of the apparently deeply in love show business couples have decided to go their separate ways. Jimmy and Sarah shared a zany sense of humor, many interests and many mutual friends. It all seemed to be working so well. It's been 5 years and now, according their respective publicists, it's over. What could have gone wrong? We can speculate, but that won't tell us what really caused the break.
It's is the times we live in? People just get bored with each other. In show business there is always someone new coming along who could test your commitment to each other. Maybe they were talking about having children and religious differences may have played a role in the children(s) rearing. A couple of generations ago, our grandparents married for love, convenience, security and a mutual desire to raise a family with the "right" spouse. Their lives were so busy and full with work, sacrifice, extended families that the attitude was "if you had problems, you just worked them out". Divorce is no longer a sin to be frowned upon. It's so commonplace that breaking up is now the norm. So keep your eyes and ears opened so we can find out what happened to Jimmy and Sarah. I was rooting for them to make it. Too bad.