Most of tech's most powerful CEOs are coupled up. Here's what life is like for the husbands and wives of Silicon Valley's elite.

· Most of tech's most powerful CEOs are married. 
· Not everyone is coupled up — Elon Musk and Jeff Bezos have girlfriends, while Jack Dorsey and Tim Cook appear to be single. 
· But for those who are married, many of them have been with their spouses for years or even decades. 
· Here's a look at the lives of the...