On Tuesday night's episode of The Real Housewives of Beverly Hills, Lisa and her husband, Ken Todd, kicked Kyle out of their mansion, kissing their 12-year friendship goodbye.
One week prior to the blowout fight, Dorit claimed Lisa was the source of Radar's exclusive about Dorit giving up a puppy she adopted from Vanderpump Dogs to an animal shelter.
Kyle quickly found herself stuck between wanting to defend her longtime friend, while believing deep down Lisa was the snitch.
"I'm feeling really uncomfortable because even though I really can't defend Lisa in this moment because of what I believe, I still care about her and love her," Kyle said to the camera. "She's my friend and she's not here to speak up for herself."
Kyle drove to Lisa's house to confront her about it in person – and her accusation wasn't taken lightly.
"So you think I would give a story to Radar Online about Dorit?" Lisa screamed.
"Yes," Kyle said. "It's so blatant."
"Wow, ok, this is a big shock to me," Lisa fought back. "This changes everything! I think I've done nothing wrong!"
Kyle apologized, claiming she wanted to confront Lisa as a "friend" and told her she still loves her.
"Just because you accused me I am not going to say, 'Yes I did something' if I didn't do it!" Lisa shouted. "I could have thrown Dorit under the bus! I'm done with this – and I'm done with you too!"
"You care more about your image than about your friendships at times," Kyle said.
That's when Lisa's husband Ken interrupted the fight and told Kyle their friendship was over – for good.
"You are supposed to be her f**king friend! You're not her friend!" Ken screamed. "You cannot be her friend when you say something like that. She would never say something like that about you."
As Radar readers know, Radar boss Dylan Howard previously denied that Lisa was the source behind the dog scandal.
"You're a f**king liar and you're not my friend or her friend, so you get out!" Ken said up in arms. "Please go. Join the gang! 12 years of friendship done!"
Before walking out the door, Kyle defended herself once more.
"Am I not allowed to be honest right now? What's wrong with that? I'm just telling you how it looked. That doesn't mean I don't love you," Kyle responded. "I came here to tell you the overall consensus. I care about you and I have a hard time defending you."
Lisa exited the room and broke down in tears. "Get the f**k out of my house! I swear to you, I'm done with it!"
The RHOBH drama will continue to play out every Tuesday at 9 p.m. on Bravo.