Men are more productive at work when they’re in a relationship, according to a survey.A whopping 64 percent of single men say they are more productive in the workplace when they are dating someone.On the other hand, 53 percent of single women say their productivity actually goes down or is unchanged when they are in a relationship.The survey by dating website Zoosk Men say their role model for living a “fabulous unmarried life” is George Clooney, while women pick Cameron Diaz.The survey found that 65 percent of single men say George Clooney has the ideal unmarried life, while 22 percent pick Justin Timberlake and 13 percent pick Jake Gyllenhaal.Some 62 percent of single women say Cameron Diaz is living the ultimate unmarried life, while 21 percent pick music star Rihanna and 17 percent pick royal sibling Pippa Middleton.An overwhelming majority of singles (77 percent of women and 74 percent of men) say singles are not treated the same as married people in our society.Singles (85 percent of men and 73 percent of women) say they feel happier when in a relationship.The number one reason singles say they are still single? “I’m too picky!” Seventeen percent of men and 15 percent of women say they are simply “too busy” with other things in their lives right now to settle down.Eleven percent of men and 16 percent of women say they are single because they are “terrified of getting close to someone”, while seven percent of men and 10 percent of women say they are “too independent to be tied down”.“It’s not surprising that Zoosk’s survey found single men feel more productive when they are in a relationship,” said Alex Mehr, co-founder and co-CEO of Zoosk. “With singles having more choices than ever when it comes to dating, browsing dating profiles while at work, or on your mobile during a commute, being single can obviously distract from work duties.”The Zoosk poll was conducted online in September 2011 and fielded 4,503 responses from singles in the US who use Zoosk.