In the words of Kris Jenner, this is a case for the FBI.

Kim Kardashian shared some juicy insight into one of her past breakups — but who is the mystery man she’s talking about?

Kim Kardashian smiles slightly, her long hair down. She is wearing a neutral-colored dress with thin straps and multiple layered necklaces

Dimitrios Kambouris / Getty Images

If you’ve been watching The Kardashians, you’ll know that Kim’s “fight or flight” mindset has been a significant theme of discussion among the sisters this season. And in this week’s episode, the Skims founder had a candid conversation with Kourtney Kardashian Barker about how her workaholic tendencies stem from years of being underestimated.

Kim Kardashian sits on a couch, wearing a dark zip-up top, with wet hair and a neutral expression, in a room with curtains in the background