Kylie Jenner is said to "very torn" on how to handle the situation with Tristan Thompson.
The 'Keeping Up With The Kardashians' star was devastated to find out her best friend Jordyn Woods allegedly cheated with Kylie's sister Khloe Kardashian's partner Tristan as the whole family want to cut her "off" now.
A source said: "The whole family is writing Jordyn off. [Kylie's been] in denial for days. She is very torn on how to handle the situation. Khloe is more disappointed that someone so close to their family would betray her. She can't believe it."
Khloe - who has had to deal with the pain of being cheated on before after Tristan was seen getting close to another woman just days before she gave birth to their daughter True 10 months ago - is "shocked" by Jordyn's betrayal.
An insider added: "She heard it from multiple people and doesn't believe him for a second. She is angry more than she is sad. And she's shocked Jordyn would do this. Of all the guys in the world, she can't fathom why Jordyn would make a decision like this. Khloe is reliving the worst kind of betrayal and pain all over again."