VIDEO : Kourtney Kardashian 'Pissed Off' That Scott Disick and Tyga Party Together

On last night's episode of "Keeping Up With The Kardashians," Kourtney complained that Scott Disick and Tyga hang out "all day and night."
Kourtney complained to her sisters Kim, Khloe and Kylie Jenner that Tyga should "know better" and that he should "just find some other friends."
Kim tends to disagree with Kourtney, saying that she should put the blame on Scott and not Tyga. Kim said, "I think Kourtney has to accept the fact that it's really Scott she should be mad at."