Not cool, guys! On Sunday's episode of Keeping Up With the Kardashians, Kylie Jenner was not too pleased about being Rob Kardashian and Blac Chyna's landlord.
The on-off couple were staying at one of the 19-year-old's homes when a huge fight broke out. The widely publicized feud consisted of Chyna leaving Rob alone with Dream's empty nursery, which he documented on Snapchat.
WATCH: Kim Kardashian Gets Candid About Rob and Blac Chyna: 'They're Just Not Meant to Be'
But one lesser-known element to the brawl was the damage that Chyna allegedly caused.
"My mom calls me and apparently Chyna threw something at my television," Kylie said to the cameras. "It's a little disrespectful and I wouldn't do that to someone else's home."
Jenner went on to add, "It's really hard to support a relationship that's really unhealthy. I wish they would both stop this roller coaster ride."
Jenner already has a complicated relationship with the couple. Chyna was previously engaged to Jenner's on-again, off-again love, Tyga, and they share son, King Cairo, together.
And the cosmetics queen isn't the only member of Rob's family concerned about the contentious relationship.
Kim Kardashian and Corey Gamble rushed to Rob's side after the fight to help him talk through the testy romance.
WATCH: Khloe Kardashian Tells Rob That Blac Chyna Is 'Ready to Leave' Him in 'Keeping Up With the Kardashians' Promo
"I know one thing, you cannot go back down that lane, 'cause it's gonna be worse. You just got a taste of how bad it can be... it's gonna get way worse," Gamble said.
"Just seeing the motives is like, what's hurtful," Kim added.
For more from the episode, watch the clip below!