Scott Disick thinks his ex-girlfriend Kourtney Kardashian is ''fake.''

The former couple - who have Mason, seven, Penelope, five, and Reign, two, together - have been at loggerheads since the 'Keeping Up With the Kardashians' beauty went public with her new boyfriend Younes Bendjima but, although they're no longer together, it seems the businessman is still bitter about not being invited to family events.

Speaking in a forthcoming episode of 'Keeping Up With the Kardashians', Kourtney vented: ''You think you can hurt me and still get invited to everything.''

To which an angry Scott replied: ''It's funny how fake you really are.''

This isn't the first time the 34-year-old hunk - who is now dating model Sofia Richie - has lashed out at his former flame as he previously ''screamed at the top of his lungs'' when he found out the brunette star had moved on with someone new.

Kourtney, 38, said at the time: ''Last night I went to dinner with a guy and was photographed and I just felt like I should give Scott a heads up out of respect, even though he hasn't done the same to me in the past. But the photos never ended up coming out in the end so it was pretty much all for nothing.''

And her sister Khloe Kardashian, who had witnessed the phone call, added: ''He was screaming at the top of his lungs.''

Scott - who dated Kourtney on and off from 2006 until last year - even threatened to beat up Younes, whose identity was a secret until recently, at one point via a text.

In a recent episode of the E! show, Kourtney read out a text message from Scott about her new boyfriend and said: ''He's like 'Your little friend is going to get beat up'.''

And the fact that Scott isn't allowed to attend the family events will no doubt anger him even more when he finds out that Younes, who Kourtney has been dating for over a year, has been been invited to the family's famous festive party this year.