Stories of trouble in the pair’s relationship are widespread, but doubt remains over who is the driving force behind the split. One source alleges that Vince is pulling the plug, while another claims it’s really Jennifer, 37, who wants out.

A report published in the US suggests that Vince, 36, is being pressured by his mum Sharon to end the romance. Sharon reportedly believes Jen’s on the rebound from Brad and doesn’t truly love her son.

“[Sharon] told him that if he married Jen, he’d be in for a world of heartbreak,�? says a source. “Sharon said they needed to take a break so Jen could find closure with Brad.�?

After listening to Sharon’s advice, Vince reportedly called off their secret nuptials. “He told Jen they need to take a breather,�? the source adds.

But pals of the former Friends star say it’s Jennifer who’s calling it off after becoming fed up with Vince’s party-hard lifestyle. During a recent holiday in Mexico, the couple clashed over the actor’s boorish behaviour.

“She says he acted like a jerk, staying up all night with his friends, drinking and smoking,�? one of Jen’s mates reveals. “It dawned on her that this isn’t the kind of man she wants to marry.

“The fact is, she dumped Vince.�?