A UK lawfirm claims that Facebook is responsible for causing a third of divorces in the UK.

Divorce-Online has noticed that the social notworking site is being named a source for evidence in more divorce cases. There is a 50 per cent jump in the number of ‘behaviour-based’ divorce petitions including the term Facebook being filed in the last two years. The firm also said that at least a third of the 5,000 petitions filed in 2011 mentioned Facebook.

In a statement Mark Keenan, managing director of Divorce-Online said that while Facebook has become the primary method for communicating with friends for many people.

“People contact ex-partners and the messages start as innocent, but lead to trouble. If someone wants to have an affair or flirt with the opposite sex then it's the easiest place to do it," he said.

We are not sure how he has real affair but from our experience you have to be in the same room and Mr and Mrs Genitals have to be involved. Unless you are like my psychopathic ex-girlfriend who thought flirting was the same as going through at least three pages of the Karma Sutra and chatting to a member of the opposite sex online was two timing.