She and Matt have couples counselling...

After almost 12 years of marriage, Sarah Jessica Parker, 44, and Matthew Broderick, 47, are allegedly holding crisis talks in a last-ditch attempt to save their rocky relationship.

Sources tell Now that SJP and her hubbys problems have come to a head, leaving the couple in make-or-break territory as she books them in for marriage counselling.

Cracks first began to show after Matthew failed to deny rumours of a four-month affair with a 25-year-old youth worker last year.

With separate lives, friends and plans, pals say that if the pair cant work out their differences, they might as well end things now. They claim that the couple only speak to each other if son James, six, is in the room or if theyre with other people.

Their relationship broke down some time ago and if theyre to have any chance of saving it, they need to start work now before things get so bad they cant bear the sight of each other, says our source.

Theyve been living separate lives. They barely speak, sleep separately and cant even be bothered to argue any more. This has been going on for over a year.

Theyve tried counselling before and it didnt work, but Sarahs persuaded Matthew to try again. She wants to have done everything in her power to save her marriage. If it still fails, shell know it just wasnt meant to be.

See the latest pictures of Sarah Jessica Parker and Matthew Broderick in Now magazine dated 30 March 2009 – out now!