Sources close to Amelia Hamlin say she's "hurt" that Scott Disick is so "jealous" over Kourtney Kardashian's alleged new relationship with Travis Barker.

Insiders say Amelia is trying to "play it off" like her and Scott are "cool" and just "casual" but she is "really starting to grow feelings for him."

In fact despite her "confusion" over Scott's jealously she is still hanging out with him.

The 19-year-old model recently took to her Instagram stories where she posed for a underwear selfie. Hamlin rocked Scott's ex's sister - Kim Kardashian's - SKIMS bra and a pair of Calvin Klein's.

Amelia captioned the post, "Top of the mornin."

However some die hard Keeping Up With the Kardashians fans, noticed that Amelia decided was posing in Disick's bathroom.

In a September issue of Architectural Digest, fans were able to see inside Scott's Hidden Hills home.

When looking at the interior photos of Scott's master bathroom, the sink and cabinets look awfully familiar to the one featured in Hamlin's post.

A source previously shared with E! News that Scott was "enjoying Amelia's company. "

"She doesn't spend time with the kids at all and Scott only sees her on his days off from his kids," the insider revealed.

But Disick's inner circle have told media outlets he is "furious and jealous" of Kourtney's  blossoming relationship with Travis Barker.

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Friends of Scott have claimed that he is "freaking out" that the Poosh founder and the Blink-182 are going to be "official" any day now.

The source has told The Sun that Scott is worried it will "ruin the close relationship" he enjoys with Kourtney.

The insider continued: "Scott and Kourt's relationship is still very close - unusually close considering they split over five years ago." Related: Kanye West ‘Avoiding’ Kim Kardashian As He Is Seen In Wyoming Amidst ‘Divorce’ "He has a key to Kourt’s house, and comes and goes as he pleases, sometimes twice a day, and still considers Kourtney his family." "But now Kourt is officially dating Travis, Scott’s suddenly really jealous and seems furious." Just last week, Kourt shared a photo with her 108 million Instagram followers looking sexy while wearing just a black bra and pants in a mirror selfie. She captioned the picture: “sweet dreams” Travis, 45, couldn’t resist leaving a message under the sizzling image, posting an emoji of a rose. Scott and Kourtney share three children - Mason, 11, Reign, 6, and Penelope, 8. Next: Kim Kardashian Fans Outraged After One Of Her Paris Robbers Writes A Book