LOS ANGELES, CALIFORNIA: Kourtney Kardashian is tired of being made fun of. On the most recent episode of 'The Kardashians' on Thursday, June 29, there was a conflict between Kourtney and her sister Kim Kardashian. Kourtney accused Kim of pillaging the looks she wore to her and Travis Barker's Italian wedding and using them in her prestigious Milan Fashion Week runway show with Dolce & Gabbana four months later. Due to the escalating feud, Kourtney called her sister 'intolerable' and 'greedy' in the episode.

The creator of Poosh, Kourtney, claimed that Kim had taken advantage of Kourtney's expensive wedding "as a business opportunity" because her collection appeared similar to her wedding. Kourtney has consistently expressed her dissatisfaction with Kim on 'The Kardashians' because it seemed like she put her career above the family without considering her sentiments.

Kourtney told Khloé Kardashian," "If she felt bad, don't you think she should reach out and say, 'Hey, I was thinking about it and I really feel …' I don't think that she feels [bad]." She added, "It comes from an old thing of us being 18 months apart and just having a more competitive nature as sisters," as reported by US magazine.

'But there's no sense of loyalty. It is almost like a greediness'

Kourtney doubted that she and Kim could ever agree on anything. She added, "I go to big extents to have my own thing. But there's no sense of loyalty. It is almost like a greediness, We have it all. We have more than we could want or need. If I look at the photos from the fashion show, half the time I [wonder] if that is my wedding."

Earlier in the season, Kourtney admitted she was angry with the Skims creator over plans for a Dolce & Gabbana collaboration that appeared to be inspired by her and her husband Travis Barker's wedding. However, Kim has maintained that she made an effort to wait and intentionally avoided choosing outfits that Kourtney wore during the course of her wedding weekend.

Later, Kourtney acknowledged that she had been putting off talking to her sister. The reality star added on Thursday's episode, "It is who she is to her core. She's so intolerable to even have a conversation with." She added, "She's on her phone the whole time, she can hardly look up and is really hard to engage. It makes me want to run the other way. I just thought, 'What else could you take from me? Could I have anything that is mine?"

'This is definitely not about a brand. It was about my wedding'

She added, "This is definitely not about a brand. It was about my wedding — I didn't feel truly supported. It is like a free for all and there are no boundaries. It felt like there's no decency to ask me how I felt about her doing this so closely to my wedding," as per reports.

'I thought I was being really mindful. There were so many collections'

While all this was going on, Kim attacked Kourtney earlier after learning what was said behind her back. Kim, the KKW Beauty founder, said in a June 22 episode, "I shouldn't have to ask her for permission. I thought I was being really mindful. There were so many collections [I didn't choose items from]. She's saying every one of her friends [supports her], but she doesn't have any friends. So, Travis?"

After Kris Jenner, 67, referred to Kim as the "leader" of their family, Kourtney made fun of her. "If she wants to be [the leader then good for her]. It is not a cult that I am following."