Kristin Cavallari was once close friends with Scott Disick’s ex, Kourtney Kardashian. Disick and Kardashian dated on and off for nine years and had three children before Kardashian ultimately called it quits for a final time amid Disick’s ongoing substance abuse and infidelity.

Scott doesn’t understand why Kristin felt the need to read something he felt was a personal message between them out to the entire world,” a source told Page Six.

Kristin Cavallari called Scott Disick 'manipulative' after The Hills star revealed that he had messaged her on Instagram. The two used to be good friends until rumors circulated

Kristin Cavallari spoke out against Scott Disick, Kourtney Kardashian and the Kardashian family, reading out Scott’s alleged recent DM to her and dispelling a past hookup rumor.

The "Laguna Beach" alum said a DM from a former friend trying to reconnect was the "most manipulative" thing she's seen.