"I didn't even get invited to her birthday. And I'm family," Disick tells his ex and sister Kim Kardashian.
"That was really sweet," he adds, sarcastically. "That made me feel really good."
Disick doesn't blame the birthday girl Khloe though, he places all the blame on Kourtney.
"There’s only one person that would have gotten me not invited and that’s Kourtney," he says. "I highly doubt that Khloé was like, ‘The last person I’d want at my surprise party would be Scott'."
He continued his rant, "It’s cool. Honestly, I called my sister and I hung out with her the whole night. And then actually I called my mum after and was like, ‘Hey mum, do you want to come over because I’m feeling a little down and lonely because the family that claims I’m still blood even though we’re not together still doesn’t invite me to a surprise party.’ But I really felt good about it."
Disick's claims are sarcastic, as he is an only child and has lost both of his parents.
"The pity party is why you would think that you would act differently," Kourtney replies.
"I don't get it, be honest," Scott demands.
Kourtney tells Scott she didn’t want paparazzi snapping pictures of him coming in, but the mum of three later reveals the true reason for leaving him off the guest list.
"I’m a little bit caught off guard and I just said that I didn’t want to be photographed even though that’s really not what I meant," she explains. "I was trying to be positive. I didn’t want to say I just didn’t want you there. So if I can’t say anything nice, I just won’t say anything at all."
"That's all bulls***," Scott tells her. "It's funny to realise just how fake you really are though."
Watch their confrontation below...
Khloé later sat down with the pair to hash things out, though they still seem just as mad at one another.
Watch the tense clip...
This article originally appeared New Idea.