It may not be too late to say sorry…

Shortly after Justin Bieber confessed that he felt “used” by Kourtney Kardashian, a new report suggests she’s having her regrets too — and wants the 21-year-old to apologize for dissing her!

RELATED: Kourtney and Scott Are Working on Their Relationship, Source Says

“Kourtney wants a major explanation and apology. She’s not the one who leaked their romance to the public,” a source tells Hollywood Life.

“She feels like she’s being punished and it just goes to prove her initial instinct — that Justin is too young and too immature for her. She’s kind of beating herself up for ever getting involved with him in the first place, and not listening to her gut. She really regrets the whole thing.”

RELATED: Are the Kardashians Faking It for the ‘Keeping Up With the Kardashians’ Cameras?!

Yikes! Don’t worry Kourt — we all make mistakes!

Thankfully, the 36-year-old appears to be moving on. Last night, she took to Instagram to share a text convo with her younger sis Khloé Kardashian, in which she (mis)quoted Jay Z and brother-in-law Kanye West’s song “Otis,” writing, “I think I got my swagger back… Truth.”

Truer words have never been spoken.

You got this, Kourt!

For access to all our exclusive celebrity videos and interviews – Subscribe on YouTube!