Kylie Jenner Calls Tristan Thompson's Behavior "Unforgivable"

No matter what, the Kardashian-Jenner family remains close.

Khloe Kardashian's family backed her after it was discovered that Tristan

Thompson had fathered a kid with a different woman last year—while

simultaneously expecting his second child with Khloe—as was revealed in the

first episode of The Kardashians season two, which premiered on September 22.

The Hulu cameras caught Kris Jenner, Kim Kardashian, Kendall Jenner, and

Kylie Jenner making open admissions about the incident.

Kylie confessed in a private moment: "Just generally, Tristan has let me down.

Bamboozled: Khloe Kardashian Opens Up About Having a Second Child with Tristan Thompson