http://www.newsweek.com/what-elon-musk-said-sergey-brin-affair-reports-wife-1727510

Elon Musk is making headlines again, but this time it has nothing to do with his on-off purchase of Twitter or the rise and fall of Tesla's share price.

The Wall Street Journal reported that Musk, the world's richest person, had fallen out with his longtime friend Sergey Brin after he had a brief affair last year with Nicole Shanahan, the Google co-founder's wife.