Kourtney Kardashian has criticised her family for prioritising men's feelings over "setting a boundary".

Kourtney Kardashian confronted Tristan Thompson

Kourtney Kardashian confronted Tristan Thompson

The Poosh founder came face-to-face with sister Khloe Kardashian's on/off partner Tristan Thompson and shen she confronted him about his infidelity, the 44-year-old star also questioned the "priority" of their clan as she can't understand why "keeping everyone happy" is seemingly deemed more important than supporting one another.

In the latest episode of 'The Kardashians', Kourtney said: "In this family, you guys are so lucky — all the guys — because for whatever reason, it's held a higher priority of, 'Let's keep everyone happy and getting along, and let's make sure Tristan is at Christmas Eve and everyone's there, and it's one big happy family and let's make sure everything's fun and happy.'

"For some reason, that takes a priority in this family over setting a boundary or having someone's back or having someone's side."

Kourtney - who has Mason, 14, Penelope, 11, and Reign, eight, with former partner Scott Disick, and three-week-old Rocky with husband Travis Barker - admitted she has "done it" herself in the past but had realised the family's attitude wasn't right.

She added: "I've been a part of this whole thing, but it's interesting to me when I think about it in a superficial way.

"We can make sure Khloé looks her best ... but really making sure that the person feels supported, stood up for, sets the boundaries they need to set and is supported in that.

"And in this family, it's not [supported]. It's lucky for you guys and it is great for the kids, but then it's also like..."

In a confessional, Kourtney insisted she was "not here to hold a grudge" and believes "people can grow" but admitted she was still skeptical about Tristan's work and actions, and she's keen to set a good example to her daughter.

She said: "It was interesting to me, the work that he's doing and the path that he's on, because when your words don’t match your actions, it's concerning.

"Talk is cheap. In our family, everyone can tend to normalize these behaviors of some of the men in our lives and I don’t want to show my daughter that that’s OK.

"I think having forgiveness and giving grace is right, but also having really clear boundaries, I think is really important."

During their discussion, Tristan - who has True, five, and Tatum, 15 months, with Khloe - vowed to "be better" and "own" his mistakes.

He said: "I’m not proud of the person I used to be. Am I proud of the person I'm becoming? Of course, but in order for that to happen, I had to fall, hit rock bottom, lose everything in life...

"I needed to grow so I can be better for my kids."