Ryan Phillippe's romance is reportedly on the rocks.
The 'Cruel Intentions' actor - who has two, children Ava, 10, and six-year-old Deacon with ex-wife Reese Witherspoon - and girlfriend Abbie Cornish are allegedly "fighting all the time" over Ryan's apparent reluctance to commit.
A source told America's Star magazine: "The main thing is that Abbie wants to be married and start a family and she feels it's beyond time for Ryan to make that happen.
"Ryan is spending more and more time partying."
It was recently claimed that Ryan - who hasn't publicly been seen with the Australian actress since October - and Abbie's problems were caused by his womanising ways.
One source told National Enquirer magazine: "Ryan and Abbie are on the rocks because he's back to his horndog ways. He's been hitting the clubs regularly and desperately trying to hook up with almost every young woman he meets. His womanising has gotten so out of hand it's like Abbie never existed."