The pair were locked in a bitter war of words on the social networking site making claims and counter claims against each other following revelations that the 29-year-old Rothschild heiress had an affair with rising US hip-hop star Jay Electronica.
Lawyers had warned the increasingly acrimonious public spat could have a detrimental impact on either party’s potential divorce settlement. Even Electronica — real name Timothy Elpadaro Thedford — was tweeting about the row and posted an image he took of Kate.
And today the couple issued a joint statement blaming “high emotions” for the outbursts which they acknowledged should have been kept private.
They said: “We are both deeply saddened that our marriage has ended after nine years.“It is a matter of regret to us that, at a time when our emotions and those of our friends have run high, things have been said in public which should have been kept private. We accept our full share of responsibility for this.
“Contrary to what has been publicly stated, neither of us anticipates any major issues of contention to arise in the divorce, in which the interests of our children will come first.
“There will be no further comment, either directly or indirectly, from us on any aspect of our family’s private life.”
The online spat began when Mr Goldsmith branded his wife’s behaviour “appalling” after police were called to their Kensington home following a row after she confessed the affair.
He also accused her of caring more about her reputation than her children, ridiculing her for hiring a PR firm to deal with the fall-out.
Mrs Goldsmith has also been accused of dragging her children into the row by posting a picture on Twitter of them disembarking from a private jet which was “liked” by Jay Electronica.
Yesterday she took to Twitter to launch an impassioned defence of her behaviour.
In a series of extraordinary tweets, she said her “life had been saved” by the rapper, implied the story was being spun against her, accused her husband of cheating and being “irrational”, and said she was responding to the “vultures” taunting her.
She wrote: “All of you should go home and question whether you are really in a position to judge and condemn and then get on with fixing your own lives. Ben in a rational mood would be the first to say that my devotion to my children is unshakeable. I am with them now, as I always am.
“I have been with my husband since I was 17 years old, my whole life from then until now has been dedicated to him and our children.
Our marriage went bad a few years ago and none of you have any idea what I went through along with my husband. Then we separated for a while, anger and bitterness following that time led to a very one sided story being deliberately released in order to shame and hurt me.
“This is the darkest time of my life.” A later tweet said: “As for Jay Electronica … he saved my life in many ways and I am eternally grateful to him.”
Many of the couple’s messages on Twitter have now been deleted.
Friends also leapt to her defence. One, Joy Bellfahy, wrote: “Kate you are one of the most dedicated and wonderful Mothers I’ve ever known and I know a lot of them xxxx.”
The heiress is understood to have met the 35-year-old rapper last autumn.
She has been managing the star in her role as record producer, but Mr Goldsmith became suspicious of the time the pair were spending together.
Mr Goldsmith is on holiday in Sicily with his mother, Lady Annabel, while his wife is understood to be with the children in London at the family home, which has recently been put on the market for £20 million.
The rapper’s family in New Orleans refused to discuss the relationship.
KATE GOLDSMITH AND HUSBAND BEN GOLDSMITH photo credit thisislondon.co.uk