Jennifer Aniston & Vince Vaughn

Actor Vince Vaughn has reportedly found it so hard to deal with his real-life break-up from his 'The Break-Up' star Jennifer Aniston, that he now wants her back.

A source revealed to Look magazine that the actor was "regretting" his decision to cool off the couple's relationship, and that he is now 'desperate' to get her back into his life.

"Vince is lonely as hell without Jennifer and he's regretting his decision to let her slip away. He's desperate to get her back," The Bosh quoted the source, as saying.

The source added that the actor was also feeling extremely guilty over the fact that Aniston is now thinking about adopting a child rather than have her own first.

"Vince feels responsible for Jennifer's situation, because without him she's being forced to go down the single mother route because of her age," the source said.

"He really does want to get married and have kids. It kills him to think about Jennifer bringing a child home on her own and taking on the whole responsibility by herself," the insider added.