Scott Disick and Kourtney Kardashian
Getty Images, Dimitrios Kambouris / Staff

They may have long parted ways but Kourtney Kardashian and Scott Disick clearly have feelings that still linger. And while Scott may be in a serious relationship with a much-younger Sofia Richie, it appears that the dad-of-three still gets very affected by the men in his former partner's life.

According to a report by the Hollywood Life, Scott Disick simply cannot stand to see the mother of his kids hang out or flirt with other men – be it Travis Barker or Liam Payne. To top it all, Kourtney Kardashian loves making her ex jealous!

Currently heading the list of Kourtney's could-be beaus is Blink 182 member Travis Barker. The two were spotted getting together with their kids a few months ago and Scott was not pleased. "Travis and Kourtney are very flirty when they're together but she swears they're just really good friends," a Kardashian insider revealed to Hollywood Life.

"Not everyone believes her though, Scott is very suspicious that there could be something going on between them on the down low. He gets riled up when he sees pictures of them hanging out; it bugs him because he feels like Kourtney's hiding something from him. He grills her over it all the time, he still wants to know every move she makes, but she just laughs it off."

On the other hand, we have Liam Payne leaving flirty comments on Kourtney's sexy pictures. The One Direction singer left an innocent 'Wow' on Kourt's Instagram picture, but fans immediately noticed it.

"Scott feels a tinge of jealousy over Liam's flirty comment with Kourtney, but he knows he has no room to say anything to his ex," a source told Hollywood Life. "So he's going to keep his mouth shut about it. Scott has always thought Kourtney was really attractive but when a big celebrity reminds him of how sexy Kourtney looks, Scott takes notice. While Scott is in love with Sofia, he still has a lot of love for Kourtney, too, so he feels territorial and protective over the mother of his children."

Reportedly, Kourtney is well aware of Scott's jealousy and it makes her feel "loved, wanted and sexy." "Kourtney is well-aware that Scott is watching her every move, who she dates, and who flirts with her online," an insider revealed. "Kourtney likes knowing that Scott is watching and regrets losing her."

The former couple parted ways for a second time in July 2015 after he was seen getting more than comfortable with Chloe Bartoli.